The Austroasiatic languages ( ) are a large

language family A language family is a group of languages related through descent from a common ancestor, called the proto-language of that family. The term ''family'' is a metaphor borrowed from biology, with the tree model used in historical linguistics ...

spoken throughout

Mainland Southeast Asia Mainland Southeast Asia (historically known as Indochina and the Indochinese Peninsula) is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to th ...

South Asia South Asia is the southern Subregion#Asia, subregion of Asia that is defined in both geographical and Ethnicity, ethnic-Culture, cultural terms. South Asia, with a population of 2.04 billion, contains a quarter (25%) of the world's populatio ...

and

East Asia East Asia is a geocultural region of Asia. It includes China, Japan, Mongolia, North Korea, South Korea, and Taiwan, plus two special administrative regions of China, Hong Kong and Macau. The economies of Economy of China, China, Economy of Ja ...

. These languages are natively spoken by the majority of the population in

Vietnam Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...

and

Cambodia Cambodia, officially the Kingdom of Cambodia, is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. It is bordered by Thailand to the northwest, Laos to the north, and Vietnam to the east, and has a coastline ...

, and by minority populations scattered throughout parts of

Thailand Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spa ...

Laos Laos, officially the Lao People's Democratic Republic (LPDR), is the only landlocked country in Southeast Asia. It is bordered by Myanmar and China to the northwest, Vietnam to the east, Cambodia to the southeast, and Thailand to the west and ...

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

Myanmar Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and has ...

Malaysia Malaysia is a country in Southeast Asia. Featuring the Tanjung Piai, southernmost point of continental Eurasia, it is a federation, federal constitutional monarchy consisting of States and federal territories of Malaysia, 13 states and thre ...

Bangladesh Bangladesh, officially the People's Republic of Bangladesh, is a country in South Asia. It is the List of countries and dependencies by population, eighth-most populous country in the world and among the List of countries and dependencies by ...

Nepal Nepal, officially the Federal Democratic Republic of Nepal, is a landlocked country in South Asia. It is mainly situated in the Himalayas, but also includes parts of the Indo-Gangetic Plain. It borders the Tibet Autonomous Region of China Ch ...

, and

southern China Northern China () and Southern China () are two approximate regions that display certain differences in terms of their geography, demographics, economy, and culture. Extent The Qinling–Daba Mountains serve as the transition zone between ...

. Approximately 117 million people speak an Austroasiatic language, of which more than two-thirds are Vietnamese speakers. Of the Austroasiatic languages, only Vietnamese, Khmer, and Mon have lengthy, established presences in the historical record. Only two are presently considered to be the

national language '' '' A national language is a language (or language variant, e.g. dialect) that has some connection— de facto or de jure—with a nation. The term is applied quite differently in various contexts. One or more languages spoken as first languag ...

s of sovereign states: Vietnamese in Vietnam, and Khmer in Cambodia. The Mon language is a recognized indigenous language in Myanmar and Thailand, while the

Wa language Wa (Va) is an Austroasiatic language spoken by the Wa people of Myanmar and China. There are three distinct varieties, sometimes considered separate languages; their names in ''Ethnologue'' are Parauk, the majority and standard form; Vo ( Zhen ...

is a "recognized national language" in the de facto autonomous Wa State within Myanmar. Santali is one of the 22 scheduled languages of India. The remainder of the family's languages are spoken by minority groups and have no official status. ''

Ethnologue ''Ethnologue: Languages of the World'' is an annual reference publication in print and online that provides statistics and other information on the living languages of the world. It is the world's most comprehensive catalogue of languages. It w ...

'' identifies 168 Austroasiatic languages. These form thirteen established families (plus perhaps Shompen, which is poorly attested, as a fourteenth), which have traditionally been grouped into two, as Mon–Khmer, and Munda. However, one recent classification posits three groups (Munda, Mon-Khmer, and Khasi–Khmuic), while another has abandoned Mon–Khmer as a taxon altogether, making it synonymous with the larger family. Scholars generally date the ancestral language to with a

homeland A homeland is a place where a national or ethnic identity has formed. The definition can also mean simply one's country of birth. When used as a proper noun, the Homeland, as well as its equivalents in other languages, often has ethnic natio ...

in southern China or the

Mekong River The Mekong or Mekong River ( , ) is a transboundary river in East Asia and Southeast Asia. It is the world's List of rivers by length, twelfth-longest river and List of longest rivers of Asia, the third-longest in Asia with an estimated l ...

valley. Sidwell (2022) proposes that the locus of Proto-Austroasiatic was in the

Red River Delta The Red River Delta or Hong River Delta () is the flat low-lying plain formed by the Red River and its distributaries merging with the Thái Bình River in Northern Vietnam. ''Hồng'' (紅) is a Sino-Vietnamese word for "red" or "crimson". T ...

area around . Genetic and linguistic research in 2015 about ancient people in East Asia suggest an origin and homeland of Austroasiatic in today's

or even further north.

Etymology

The name ''Austroasiatic'' was coined by Wilhelm Schmidt () based on , the

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

word for "South" (but idiosyncratically used by Schmidt to refer to the southeast), and "Asia". Despite the literal meaning of its name, only three Austroasiatic branches are actually spoken in South Asia: Khasic, Munda, and Nicobarese.

Typology

Regarding word structure, Austroasiatic languages are well known for having an iambic "sesquisyllabic" pattern, with basic nouns and verbs consisting of an initial, unstressed, reduced

minor syllable Primarily in Austroasiatic languages (also known as Mon–Khmer), in a typical word, a minor syllable, presyllable, or sesquisyllable, is a reduced (minor) syllable followed by a full tonic or stressed syllable. The minor syllable may be of the for ...

followed by a stressed, full syllable. This reduction of presyllables has led to a variety of phonological shapes of the same original Proto-Austroasiatic prefixes, such as the causative prefix, ranging from CVC syllables to consonant clusters to single consonants among the modern languages. As for word formation, most Austroasiatic languages have a variety of derivational prefixes, many have

infix An infix is an affix inserted inside a word stem (an existing word or the core of a family of words). It contrasts with '' adfix,'' a rare term for an affix attached to the outside of a stem, such as a prefix or suffix. When marking text for ...

es, but suffixes are almost completely non-existent in most branches except Munda, and a few specialized exceptions in other Austroasiatic branches. The Austroasiatic languages are further characterized as having unusually large vowel inventories and employing some sort of pitch register contrast, either between modal (normal) voice and breathy (lax) voice or between modal voice and

creaky voice In linguistics, creaky voice (sometimes called laryngealisation, pulse phonation, vocal fry, or glottal fry) refers to a low, scratchy sound that occupies the vocal range below the common vocal register. It is a special kind of phonation in which ...

. Languages in the Pearic branch and some in the Vietic branch can have a three- or even four-way voicing contrast. However, some Austroasiatic languages have lost the register contrast by evolving more diphthongs or in a few cases, such as Vietnamese,

tonogenesis Tone is the use of pitch in language to distinguish lexical or grammatical meaning—that is, to distinguish or to inflect words. All oral languages use pitch to express emotional and other para-linguistic information and to convey emphasis ...

. Vietnamese has been so heavily influenced by Chinese that its original Austroasiatic phonological quality is obscured and now resembles that of South Chinese languages, whereas Khmer, which had more influence from Sanskrit, has retained a more typically Austroasiatic structure.

Proto-language

Much work has been done on the reconstruction of Proto-Mon–Khmer in Harry L. Shorto's ''Mon–Khmer Comparative Dictionary''. Little work has been done on the

Munda languages The Munda languages are a group of closely related languages spoken by about eleven million people in India, Bangladesh and Nepal. Historically, they have been called the Kolarian languages. They constitute a branch of the Austroasiatic langu ...

, which are poorly documented. Proto-Mon–Khmer becomes synonymous with the

Proto-Austroasiatic language Proto-Austroasiatic is the reconstructed ancestor of the Austroasiatic languages. Proto-Mon–Khmer (i.e., all Austroasiatic branches except for Munda) has been reconstructed in Harry L. Shorto's ''Mon–Khmer Comparative Dictionary'', while a ...

with their demotion from a primary branch. Paul Sidwell (2005) reconstructs the consonant inventory of Proto-Mon–Khmer as follows: This is identical to earlier reconstructions except for . is better preserved in the

Katuic languages The fifteen Katuic languages form a branch of the Austroasiatic languages spoken by about 1.5 million people in Southeast Asia. People who speak Katuic languages are called the Katuic peoples. Paul Sidwell is the leading specialist on the Katuic ...

, which Sidwell has specialized in.

Internal classification

Linguists traditionally recognize two primary divisions of Austroasiatic: the Mon–Khmer languages of

Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...

Northeast India Northeast India, officially the North Eastern Region (NER), is the easternmost region of India representing both a geographic and political Administrative divisions of India, administrative division of the country. It comprises eight States and ...

, and the

Nicobar Islands The Nicobar Islands are an archipelago, archipelagic island chain in the eastern Indian Ocean. They are located in Southeast Asia, northwest of Aceh on Sumatra, and separated from Thailand to the east by the Andaman Sea. Located southeast of t ...

, and the

East East is one of the four cardinal directions or points of the compass. It is the opposite direction from west and is the direction from which the Sun rises on the Earth. Etymology As in other languages, the word is formed from the fact that ea ...

and

Central India Central India refers to a geographical region of India that generally includes the states of Chhattisgarh and Madhya Pradesh. The Central Zonal Council, established by the Government of India, includes these states as well as Uttar Prades ...

and parts of

and

. However, no evidence for this classification has ever been published. Each family written in boldface below is accepted as a valid clade. By contrast, the relationships ''between'' these families within Austroasiatic are debated. In addition to the traditional classification, two recent proposals are given, neither of which accepts traditional "Mon–Khmer" as a valid unit. However, little of the data used for competing classifications has ever been published and, therefore, cannot be evaluated by peer review. In addition, there are suggestions that additional branches of Austroasiatic might be preserved in substrata of Acehnese in Sumatra (Diffloth), the

Chamic languages The Chamic languages, also known as Aceh–Chamic and Acehnese–Chamic, are a group of ten languages spoken in Aceh (Sumatra, Indonesia) and in parts of Cambodia, Thailand, Vietnam and Hainan, China. The Chamic languages are a subgroup of Malay ...

of Vietnam, and the

Land Dayak languages The Land Dayak languages are a group of dozen or so languages spoken by the Bidayuh Land Dayaks of northwestern Borneo, and according to some sources, also spoken by the Rejang people of southwestern Sumatra, Indonesia. Languages ''Glottolog'' ...

of Borneo (Adelaar 1995).

Diffloth (1974)

Diffloth's widely cited original classification, now abandoned by Diffloth himself, is used in ''

Encyclopædia Britannica The is a general knowledge, general-knowledge English-language encyclopaedia. It has been published by Encyclopædia Britannica, Inc. since 1768, although the company has changed ownership seven times. The 2010 version of the 15th edition, ...

'' and—except for the breakup of Southern Mon–Khmer—in ''Ethnologue''. * Austro‑Asiatic ** Munda *** North Munda **** Korku **** Kherwarian *** South Munda **** Kharia–Juang **** Koraput Munda ** Mon–Khmer *** Eastern Mon–Khmer **** Khmer (Cambodian) **** Pearic **** Bahnaric **** Katuic **** Vietic (Vietnamese, Muong) *** Northern Mon–Khmer **** Khasi (

Meghalaya Meghalaya (; "the abode of clouds") is a states and union territories of India, state in northeast India. Its capital is Shillong. Meghalaya was formed on 21 January 1972 by carving out two districts from the Assam: the United Khasi Hills an ...

, India) **** Palaungic **** Khmuic *** Southern Mon–Khmer **** Mon **** Aslian ( Malaya) **** Nicobarese (

)

Peiros (2004)

Peiros is a lexicostatistic classification, based on percentages of shared vocabulary. This means that languages can appear to be more distantly related than they actually are due to

language contact Language contact occurs when speakers of two or more languages or varieties interact with and influence each other. The study of language contact is called contact linguistics. Language contact can occur at language borders, between adstratum ...

. Indeed, when Sidwell (2009) replicated Peiros's study with languages known well enough to account for loans, he did not find the internal (branching) structure below. AustroAsiatic tree Peiros2004

* Austro‑Asiatic ** Nicobarese ** Munda–Khmer *** Munda *** Mon–Khmer **** Khasi **** Nuclear Mon–Khmer ***** Mangic ( Mang + Palyu) (perhaps in Northern MK) ***** Vietic (perhaps in Northern MK) ***** Northern Mon–Khmer ****** Palaungic ****** Khmuic ***** Central Mon–Khmer ****** Khmer dialects ****** Pearic ****** Asli-Bahnaric ******* Aslian ******* Mon–Bahnaric ******** Monic ******** Katu–Bahnaric ********* Katuic ********* Bahnaric

Diffloth (2005)

Diffloth compares reconstructions of various clades, and attempts to classify them based on shared innovations, though like other classifications the evidence has not been published. As a schematic, we have: Or in more detail, * Austro‑Asiatic **

(India) *** Koraput: 7 languages *** Core Munda languages **** Kharian–Juang: 2 languages **** North Munda languages ***** '' Korku'' ***** Kherwarian: 12 languages ** Khasi–Khmuic languages (Northern Mon–Khmer) *** Khasian: 3 languages of north eastern India and adjacent region of Bangladesh *** Palaungo-Khmuic languages **** Khmuic: 13 languages of Laos and Thailand **** Palaungo-Pakanic languages ***** Pakanic or Palyu: 4 or 5 languages of southern China and Vietnam ***** Palaungic: 21 languages of Burma, southern China, and Thailand ** Nuclear Mon–Khmer languages *** Khmero-Vietic languages (Eastern Mon–Khmer) **** Vieto-Katuic languages ?Sidwell (2005) casts doubt on Diffloth's Vieto-Katuic hypothesis, saying that the evidence is ambiguous, and that it is not clear where Katuic belongs in the family. ***** Vietic: 10 languages of Vietnam and Laos, including Muong and Vietnamese, which has the most speakers of any Austroasiatic language. ***** Katuic: 19 languages of Laos, Vietnam, and Thailand. **** Khmero-Bahnaric languages ***** Bahnaric: 40 languages of Vietnam, Laos, and Cambodia. ***** Khmeric languages ****** The Khmer dialects of Cambodia, Thailand, and Vietnam. ****** Pearic: 6 languages of Cambodia. *** Nico-Monic languages (Southern Mon–Khmer) **** Nicobarese: 6 languages of the

, a territory of India. **** Asli-Monic languages ***** Aslian: 19 languages of peninsular Malaysia and Thailand. ***** Monic: 2 languages, the

Mon language The Mon language, formerly known as Peguan and Talaing, is an Austroasiatic language spoken by the Mon people. Mon, like the related Khmer language, but unlike most languages in mainland Southeast Asia, is not tonal. The Mon language is a recogn ...

of Burma and the Nyahkur language of Thailand.

Sidwell (2009–2015)

Paul Sidwell Paul James Sidwell is an Australian linguist based in Canberra, Australia, who has held research and lecturing positions at the Australian National University. Sidwell, who is also an expert and consultant in forensic linguistics, is most nota ...

(2009), in a

lexicostatistical Lexicostatistics is a method of comparative linguistics that involves comparing the percentage of lexical cognates between languages to determine their relationship. Lexicostatistics is related to the comparative method but does not reconstruct a ...

comparison of 36 languages which are well known enough to exclude loanwords, finds little evidence for internal branching, though he did find an area of increased contact between the Bahnaric and Katuic languages, such that languages of all branches apart from the geographically distant Munda and Nicobarese show greater similarity to Bahnaric and Katuic the closer they are to those branches, without any noticeable innovations common to Bahnaric and Katuic. He therefore takes the conservative view that the thirteen branches of Austroasiatic should be treated as equidistant on current evidence. Sidwell & Blench (2011) discuss this proposal in more detail, and note that there is good evidence for a Khasi–Palaungic node, which could also possibly be closely related to Khmuic.Sidwell, Paul, and Roger Blench. 2011.
The Austroasiatic Urheimat: the Southeastern Riverine Hypothesis
." Enfield, NJ (ed.) ''Dynamics of Human Diversity'', 317–345. Canberra: Pacific Linguistics. If this would the case, Sidwell & Blench suggest that Khasic may have been an early offshoot of Palaungic that had spread westward. Sidwell & Blench (2011) suggest Shompen as an additional branch, and believe that a Vieto-Katuic connection is worth investigating. In general, however, the family is thought to have diversified too quickly for a deeply nested structure to have developed, since Proto-Austroasiatic speakers are believed by Sidwell to have radiated out from the central

Mekong The Mekong or Mekong River ( , ) is a transboundary river in East Asia and Southeast Asia. It is the world's twelfth-longest river and the third-longest in Asia with an estimated length of and a drainage area of , discharging of wat ...

river valley relatively quickly. Subsequently, Sidwell (2015a: 179) proposed that Nicobarese subgroups with Aslian, just as how Khasian and Palaungic subgroup with each other. A subsequent computational phylogenetic analysis (Sidwell 2015b) suggests that Austroasiatic branches may have a loosely nested structure rather than a completely rake-like structure, with an east–west division (consisting of Munda, Khasic, Palaungic, and Khmuic forming a western group as opposed to all of the other branches) occurring possibly as early as 7,000 years before present. However, he still considers the subbranching dubious. Integrating computational phylogenetic linguistics with recent archaeological findings, Paul Sidwell (2015c)Sidwell, Paul. 2015c. ''Phylogeny, innovations, and correlations in the prehistory of Austroasiatic''. Paper presented at the workshop ''Integrating inferences about our past: new findings and current issues in the peopling of the Pacific and South East Asia'', 22–23 June 2015, Max Planck Institute for the Science of Human History, Jena, Germany. further expanded his Mekong riverine hypothesis by proposing that Austroasiatic had ultimately expanded into

Indochina Mainland Southeast Asia (historically known as Indochina and the Indochinese Peninsula) is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to th ...

from the

Lingnan Lingnan (; ) is a geographic area referring to the lands in the south of the Nanling Mountains. The region covers the modern China, Chinese subdivisions of Guangdong, Guangxi, Hainan, Hong Kong & Macau and Northern Vietnam. Background The ar ...

area of

, with the subsequent Mekong riverine dispersal taking place after the initial arrival of Neolithic farmers from southern China. Sidwell (2015c) tentatively suggests that Austroasiatic may have begun to split up 5,000 years B.P. during the Neolithic transition era of

mainland Southeast Asia Mainland Southeast Asia (historically known as Indochina and the Indochinese Peninsula) is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to th ...

, with all the major branches of Austroasiatic formed by 4,000 B.P. Austroasiatic would have had two possible dispersal routes from the western periphery of the Pearl River watershed of

, which would have been either a coastal route down the coast of Vietnam, or downstream through the

via

Yunnan Yunnan; is an inland Provinces of China, province in Southwestern China. The province spans approximately and has a population of 47.2 million (as of 2020). The capital of the province is Kunming. The province borders the Chinese provinces ...

. Both the reconstructed lexicon of Proto-Austroasiatic and the archaeological record clearly show that early Austroasiatic speakers around 4,000 B.P. cultivated rice and

millet Millets () are a highly varied group of small-seeded grasses, widely grown around the world as cereal crops or grains for fodder and human food. Most millets belong to the tribe Paniceae. Millets are important crops in the Semi-arid climate, ...

, kept livestock such as dogs, pigs, and chickens, and thrived mostly in estuarine rather than coastal environments. At 4,500 B.P., this "Neolithic package" suddenly arrived in Indochina from the Lingnan area without cereal grains and displaced the earlier pre-Neolithic hunter-gatherer cultures, with grain husks found in northern Indochina by 4,100 B.P. and in southern Indochina by 3,800 B.P. However, Sidwell (2015c) found that iron is not reconstructable in Proto-Austroasiatic, since each Austroasiatic branch has different terms for iron that had been borrowed relatively lately from Tai, Chinese, Tibetan, Malay, and other languages. During the

Iron Age The Iron Age () is the final epoch of the three historical Metal Ages, after the Chalcolithic and Bronze Age. It has also been considered as the final age of the three-age division starting with prehistory (before recorded history) and progre ...

about 2,500 B.P., relatively young Austroasiatic branches in Indochina such as Vietic, Katuic, Pearic, and Khmer were formed, while the more internally diverse Bahnaric branch (dating to about 3,000 B.P.) underwent more extensive internal diversification. By the Iron Age, all of the Austroasiatic branches were more or less in their present-day locations, with most of the diversification within Austroasiatic taking place during the Iron Age. Paul Sidwell (2018) considers the Austroasiatic language family to have rapidly diversified around 4,000 years B.P. during the arrival of rice agriculture in Indochina, but notes that the origin of Proto-Austroasiatic itself is older than that date. The lexicon of Proto-Austroasiatic can be divided into an early and late stratum. The early stratum consists of basic lexicon including body parts, animal names, natural features, and pronouns, while the names of cultural items (agriculture terms and words for cultural artifacts, which are reconstructible in Proto-Austroasiatic) form part of the later stratum.

Roger Blench Roger Marsh Blench (born August 1, 1953) is a British linguist, ethnomusicologist and development anthropologist. He has an M.A. and a Ph.D. from the University of Cambridge and is based in Cambridge, England. He researches, publishes, and work ...

(2017)Blench, Roger. 2017.
Waterworld: lexical evidence for aquatic subsistence strategies in Austroasiatic
''. Presented at ICAAL 7, Kiel, Germany. suggests that vocabulary related to aquatic subsistence strategies (such as boats, waterways, river fauna, and fish capture techniques) can be reconstructed for Proto-Austroasiatic. Blench (2017) finds widespread Austroasiatic roots for 'river, valley', 'boat', 'fish', 'catfish sp.', 'eel', 'prawn', 'shrimp' (Central Austroasiatic), 'crab', 'tortoise', 'turtle', 'otter', 'crocodile', 'heron, fishing bird', and 'fish trap'. Archaeological evidence for the presence of agriculture in northern

(northern Vietnam, Laos, and other nearby areas) dates back to only about 4,000 years ago (2,000 BC), with agriculture ultimately being introduced from further up to the north in the Yangtze valley where it has been dated to 6,000 B.P. Sidwell (2022)Sidwell, Paul. 2021
''Austroasiatic Dispersal: the AA "Water-World" Extended''

SEALS 2021
.
Video)
proposes that the locus of Proto-Austroasiatic was in the

area about 4,000-4,500 years before present, instead of the Middle Mekong as he had previously proposed. Austroasiatic dispersed coastal maritime routes and also upstream through river valleys. Khmuic, Palaungic, and Khasic resulted from a westward dispersal that ultimately came from the Red River valley. Based on their current distributions, about half of all Austroasiatic branches (including Nicobaric and Munda) can be traced to coastal maritime dispersals. Hence, this points to a relatively late riverine dispersal of Austroasiatic as compared to Sino-Tibetan, whose speakers had a distinct non-riverine culture. In addition to living an aquatic-based lifestyle, early Austroasiatic speakers would have also had access to livestock, crops, and newer types of watercraft. As early Austroasiatic speakers dispersed rapidly via waterways, they would have encountered speakers of older language families who were already settled in the area, such as Sino-Tibetan.

Sidwell (2018)

Sidwell (2018) (quoted in Sidwell 2021) gives a more nested classification of Austroasiatic branches as suggested by his computational phylogenetic analysis of Austroasiatic languages using a 200-word list. Many of the tentative groupings are likely linkages. Pakanic and Shompen were not included.

Possible extinct branches

(2009) also proposes that there might have been other primary branches of Austroasiatic that are now extinct, based on substrate evidence in modern-day languages. * Pre- Chamic languages (the languages of coastal Vietnam before the Chamic migrations). Chamic has various Austroasiatic loanwords that cannot be clearly traced to existing Austroasiatic branches (Sidwell 2006, 2007).Sidwell, Paul. 2006.
Dating the Separation of Acehnese and Chamic By Etymological Analysis of the Aceh-Chamic Lexicon
." In The ''

Mon-Khmer Studies ''Mon-Khmer Studies'' was an academic journal that focused on Mon-Khmer languages. It was established in 1964 and ceased publication in 2016. From 1992 onwards, it was published by Mahidol University and SIL International SIL Global (formerl ...

'', 36: 187–206.Sidwell, Paul. 2007.
The Mon-Khmer Substrate in Chamic: Chamic, Bahnaric and Katuic Contact
." In SEALS XII Papers from the 12th Annual Meeting of the Southeast Asian Linguistics Society 2002, edited by Ratree Wayland et al.. Canberra, Australia, 113-128. Pacific Linguistics, Research School of Pacific and Asian Studies, The Australian National University. Larish (1999)Larish, Michael David. 1999. ''The Position of Moken and Moklen Within the Austronesian Language Family''. Doctoral dissertation, University of Hawai'i at Mānoa. also notes that Moklenic languages contain many Austroasiatic loanwords, some of which are similar to the ones found in Chamic. * Acehnese substratum (Sidwell 2006). Acehnese has many basic words that are of Austroasiatic origin, suggesting that either Austronesian speakers have absorbed earlier Austroasiatic residents in northern Sumatra, or that words might have been borrowed from Austroasiatic languages in southern Vietnam – or perhaps a combination of both. Sidwell (2006) argues that Acehnese and Chamic had often borrowed Austroasiatic words independently of each other, while some Austroasiatic words can be traced back to Proto-Aceh-Chamic. Sidwell (2006) accepts that Acehnese and Chamic are related, but that they had separated from each other before Chamic had borrowed most of its Austroasiatic lexicon. * Bornean substrate languages (Blench 2010). Blench cites Austroasiatic-origin words in modern-day Bornean branches such as Land Dayak ( Bidayuh, Dayak Bakatiq, etc.), Dusunic ( Central Dusun, Visayan, etc.), Kayan, and Kenyah, noting especially resemblances with Aslian. As further evidence for his proposal, Blench also cites ethnographic evidence such as musical instruments in Borneo shared in common with Austroasiatic-speaking groups in mainland Southeast Asia. Adelaar (1995) has also noticed phonological and lexical similarities between Land Dayak and Aslian. Kaufman (2018) presents dozens of lexical comparisons showing similarities between various Bornean and Austroasiatic languages. * Lepcha substratum ("''Rongic''"). Many words of Austroasiatic origin have been noticed in Lepcha, suggesting a Sino-Tibetan superstrate laid over an Austroasiatic substrate. Blench (2013) calls this branch "''Rongic''" based on the Lepcha autonym ''Róng''. Other languages with proposed Austroasiatic substrata are: * Jiamao, based on evidence from the register system of Jiamao, a Hlai language (Thurgood 1992). Jiamao is known for its highly aberrant vocabulary in relation to other

Hlai languages The Hlai languages ( zh, s=黎语, p=Líyǔ) are a primary branch of the Kra–Dai languages, Kra–Dai language family spoken in the mountains of central and south-central Hainan in China by the Hlai people, not to be confused with the colloquia ...

. * Kerinci: van Reijn (1974) notes that Kerinci, a Malayic language of central

Sumatra Sumatra () is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the list of islands by area, sixth-largest island in the world at 482,286.55 km2 (182,812 mi. ...

, shares many phonological similarities with Austroasiatic languages, such as sesquisyllabic word structure and vowel inventory. John Peterson (2017) suggests that "pre- Munda" (early languages related to Proto-Munda) languages may have once dominated the eastern

Indo-Gangetic Plain The Indo-Gangetic Plain, also known as the Northern Plain or North Indian River Plain, is a fertile plain spanning across the northern and north-eastern part of the Indian subcontinent. It encompasses North India, northern and East India, easte ...

, and were then absorbed by Indo-Aryan languages at an early date as Indo-Aryan spread east. Peterson notes that eastern

Indo-Aryan languages The Indo-Aryan languages, or sometimes Indic languages, are a branch of the Indo-Iranian languages in the Indo-European languages, Indo-European language family. As of 2024, there are more than 1.5 billion speakers, primarily concentrated east ...

display many morphosyntactic features similar to those of Munda languages, while western Indo-Aryan languages do not.

Writing systems

Other than Latin-based alphabets, many Austroasiatic languages are written with the Khmer, Thai, Lao, and Burmese alphabets. Vietnamese divergently had an indigenous script based on Chinese logographic writing. This has since been supplanted by the Latin alphabet in the 20th century. The following are examples of past-used alphabets or current alphabets of Austroasiatic languages. *

Chữ Nôm Chữ Nôm (, ) is a logographic writing system formerly used to write the Vietnamese language. It uses Chinese characters to represent Sino-Vietnamese vocabulary and some native Vietnamese words, with other words represented by new characters ...

* Khmer alphabet * Khom script (used for a short period in the early 20th century for indigenous languages in Laos) *

Old Mon script Old or OLD may refer to: Places *Old, Baranya, Hungary *Old, Northamptonshire, England * Old Street station, a railway and tube station in London (station code OLD) *OLD, IATA code for Old Town Municipal Airport and Seaplane Base, Old Town, M ...

Mon script Mon, MON or Mon. may refer to: Places * Mon State, a subdivision of Myanmar * Mon, India, a town in Nagaland * Mon district, Nagaland * Mon, Raebareli, a village in Uttar Pradesh, India * Mon, Switzerland, a village in the Canton of Grisons * ...

* Pahawh Hmong was once used to write Khmu, under the name "Pahawh Khmu" * Tai Le ( Palaung, Blang) *

Tai Tham Tai Tham script (''Dharma, Tham'' meaning "scripture") is an abugida writing system used mainly for a group of Southwestern Tai languages i.e., Northern Thai language, Northern Thai, Tai Lue language, Tai Lü, Khün language, Khün and Lao langu ...

( Blang) * Ol Chiki alphabet ( Santali alphabet) * Mundari Bani ( Mundari alphabet) * Warang Citi ( Ho alphabet) * Ol Onal ( Bhumij alphabet) * Sorang Sompeng alphabet ( Sora alphabet)

External relations

Austric languages

Austroasiatic is an integral part of the controversial Austric hypothesis, which also includes the

Austronesian languages The Austronesian languages ( ) are a language family widely spoken throughout Maritime Southeast Asia, parts of Mainland Southeast Asia, Madagascar, the islands of the Pacific Ocean and Taiwan (by Taiwanese indigenous peoples). They are spoken ...

, and in some proposals also the

Kra–Dai languages The Kra–Dai languages ( , also known as Tai–Kadai and Daic ), are a language family in mainland Southeast Asia, southern China, and northeastern India. All languages in the family are tonal language, tonal, including Thai language, Thai a ...

and the

Hmong–Mien languages The Hmong–Mien languages (also known as Miao–Yao and rarely as Yangtzean) are a highly tonal language family of southern China and northern Southeast Asia. They are spoken in mountainous areas of southern China, including Guizhou, Hunan, Yunn ...

Hmong-Mien

Several lexical resemblances are found between the Hmong-Mien and Austroasiatic language families (Ratliff 2010), some of which had earlier been proposed by Haudricourt (1951). This could imply a relation or early language contact along the

Yangtze The Yangtze or Yangzi ( or ) is the longest river in Eurasia and the third-longest in the world. It rises at Jari Hill in the Tanggula Mountains of the Tibetan Plateau and flows including Dam Qu River the longest source of the Yangtze, i ...

. According to Cai (et al. 2011), Hmong–Mien people are ''genetically'' related to Austroasiatic speakers, and their languages were heavily influenced by Sino-Tibetan, especially

Tibeto-Burman languages The Tibeto-Burman languages are the non- Sinitic members of the Sino-Tibetan language family, over 400 of which are spoken throughout the Southeast Asian Massif ("Zomia") as well as parts of East Asia and South Asia. Around 60 million people spe ...

Indo-Aryan languages

It is suggested that the Austroasiatic languages have some influence on

including

Sanskrit Sanskrit (; stem form ; nominal singular , ,) is a classical language belonging to the Indo-Aryan languages, Indo-Aryan branch of the Indo-European languages. It arose in northwest South Asia after its predecessor languages had Trans-cultural ...

and middle Indo-Aryan languages. Indian linguist Suniti Kumar Chatterji pointed that a specific number of substantives in languages such as

Hindi Modern Standard Hindi (, ), commonly referred to as Hindi, is the Standard language, standardised variety of the Hindustani language written in the Devanagari script. It is an official language of India, official language of the Government ...

, Punjabi and Bengali were borrowed from

. Additionally, French linguist

Jean Przyluski Jean Przyluski (17 August 1885 – 28 October 1944) was a French linguist and scholar of religion and Buddhism of Polish descent. His interests ranged widely through the structure of the Vietnamese language, the development of Buddhist myt ...

suggested a similarity between the tales from the Austroasiatic realm and the Indian mythological stories of Matsyagandha (Satyavati from ''

Mahabharata The ''Mahābhārata'' ( ; , , ) is one of the two major Sanskrit Indian epic poetry, epics of ancient India revered as Smriti texts in Hinduism, the other being the ''Ramayana, Rāmāyaṇa''. It narrates the events and aftermath of the Kuru ...

'') and the

Nāga In various Asian religious traditions, the Nāgas () are a divine, or semi-divine, race of half-human, half-serpent beings that reside in the netherworld (Patala), and can occasionally take human or part-human form, or are so depicted in art. ...

Austroasiatic migrations and archaeogenetics

Mitsuru Sakitani suggests that Haplogroup O1b1, which is common in Austroasiatic people and some other ethnic groups in

, and haplogroup O1b2, which is common in today's Japanese and

Koreans Koreans are an East Asian ethnic group native to the Korean Peninsula. The majority of Koreans live in the two Korean sovereign states of North and South Korea, which are collectively referred to as Korea. As of 2021, an estimated 7.3 m ...

, are the carriers of early rice agriculture from southern China. Another study suggests that the haplogroup O1b1 is the major Austroasiatic paternal lineage and O1b2 the "para-Austroasiatic" lineage of the

and

Yayoi people The were an ancient people that immigrated to the Japanese archipelago during the Yayoi period (300 BC–300 AD) and are characterized by the existence of Yayoi material culture. Some argue for an earlier start of the Yayoi period, between 1 ...

. A full genomic study by Lipson et al. (2018) identified a characteristic lineage that can be associated with the spread of Austroasiatic languages in Southeast Asia and which can be traced back to remains of Neolithic farmers from Mán Bạc () in the

in northern Vietnam, and to closely related Ban Chiang and Vat Komnou remains in

and

respectively. This Austroasiatic lineage can be modeled as a sister group of the

Austronesian peoples The Austronesian people, sometimes referred to as Austronesian-speaking peoples, are a large group of peoples who have settled in Taiwan, maritime Southeast Asia, parts of mainland Southeast Asia, Micronesia, coastal New Guinea, Island Melan ...

with significant admixture (ca. 30%) from a deeply diverging eastern Eurasian source (modeled by the authors as sharing some genetic drift with the Onge, a modern Andamanese hunter-gatherer group) and which is ancestral to modern Austroasiatic-speaking groups of Southeast Asia such as the Mlabri and the Nicobarese, and partially to the Austroasiatic Munda-speaking groups of South Asia (''e.g.'' the Juang). Significant levels of Austroasiatic ancestry were also found in Austronesian-speaking groups of

Java Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...

, and

Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda ...

. A 2020 study states that present Austroasiatic groups in Mainland Southeast Asia can be modeled as an admixture of Hoabinhian hunter-gatherers and ancestral East Asians associated with the Neolithic farming expansion, with the exception of Kinh and Muong who share more drift with Tai-Kadai and Hmong-Mien groups. Kinh and Muong are also more related to Dongsonian culture and are implied to have roots in southern China instead of Southeast Asia. However, there is evidence of Tai-Kadai groups having Austroasiatic admixture, originating from local Chinese groups. Austroasiatic-speaking groups in southern

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

(such as the Wa and Blang in

) predominantly carry the same Mainland Southeast Asian Neolithic farmer ancestry, but with additional geneflow from northern and southern East Asian lineages that can be associated with the spread of Tibeto-Burman and Kra-Dai languages, respectively. Huang et al. (2020) states that Austroasiatic ancestry most likely originated from southwest China and that the 'core Austroasiatic' population derives most of their ancestry from Mekong Neolithic (58.0%–75.2%) instead of Late Neolithic Fujian, which is more common in the 'core Austronesian' population. Austroasiatic-related ancestry is widespread in Mainland Southeast Asia. Hmong-Mien groups in southern China also show closer affinities with Austroasiatic groups but there is evidence of Kra-Dai admixture, which increases in groups that live further east. This admixture is also present in Mainland Southeast Asians. According to Mishra et al. (2024), modern Nicobarese have the highest 'ancestral Austroasiatic' ancestry. This component is found in Austroasiatic populations from South Asia and Southeast Asia. Wang et al. (2025) states that present Austroasiatic groups are genetically similar to ancient central

populations, represented by the Late Neolithic Xingyi individual. This individual has a closer genetic relationship with the northern East Asian Boshan and the southern East Asian Qihe3.

Migration into India

According to Chaubey et al., "Austro-Asiatic speakers in India today are derived from dispersal from

, followed by extensive sex-specific admixture with local Indian populations." According to Riccio et al., the Munda peoples are likely descended from Austroasiatic migrants from Southeast Asia.

Notes

References

Sources

* Adams, K. L. (1989). ''Systems of numeral classification in the Mon–Khmer, Nicobarese and Aslian subfamilies of Austroasiatic''. Canberra, A.C.T., Australia: Dept. of Linguistics, Research School of Pacific Studies, Australian National University. * * Alves, Mark J. (2015). Morphological functions among Mon-Khmer languages: beyond the basics. In N. J. Enfield & Bernard Comrie (eds.), ''Languages of Mainland Southeast Asia: the state of the art''. Berlin: de Gruyter Mouton, 531–557. * Bradley, David (2012).
Languages and Language Families in China
", in Rint Sybesma (ed.), ''Encyclopedia of Chinese Language and Linguistics''. * Chakrabarti, Byomkes. (1994). ''A Comparative Study of Santali and Bengali''. * * Diffloth, Gérard. (2005). "The contribution of linguistic palaeontology and Austro-Asiatic". in Laurent Sagart, Roger Blench and Alicia Sanchez-Mazas, eds. ''The Peopling of East Asia: Putting Together Archaeology, Linguistics and Genetics.'' 77–80. London: Routledge Curzon. * Filbeck, D. (1978). ''T'in: a historical study''. Pacific linguistics, no. 49. Canberra: Dept. of Linguistics, Research School of Pacific Studies, Australian National University. * Hemeling, K. (1907). ''Die Nanking Kuanhua''. (German language) * Jenny, Mathias and

, eds (2015).
The Handbook of Austroasiatic Languages
''. Leiden: Brill. * Peck, B. M., Comp. (1988). ''An Enumerative Bibliography of South Asian Language Dictionaries''. * Peiros, Ilia. 1998. ''Comparative Linguistics in Southeast Asia.'' Pacific Linguistics Series C, No. 142. Canberra: Australian National University. * Shorto, Harry L. edited by Sidwell, Paul, Cooper, Doug and Bauer, Christian (2006).
A Mon–Khmer comparative dictionary
''. Canberra: Australian National University. Pacific Linguistics. * Shorto, H. L. ''Bibliographies of Mon–Khmer and Tai Linguistics''. London oriental bibliographies, v. 2. London: Oxford University Press, 1963. * * * * van Driem, George. (2007). Austroasiatic phylogeny and the Austroasiatic homeland in light of recent population genetic studies. ''

'', 37, 1–14. * Zide, Norman H., and Milton E. Barker. (1966) ''Studies in Comparative Austroasiatic Linguistics'', The Hague: Mouton (Indo-Iranian monographs, v. 5.). *

External links

* Swadesh lists for Austro-Asiatic languages (from Wiktionary's Swadesh-list appendix)
Mon–Khmer.com
Lectures by

Mon–Khmer Languages Project
at SEAlang
Munda Languages Project
at SEAlang
RWAAI
(Repository and Workspace for Austroasiatic Intangible Heritage) * RWAAI Digital Archive
Michel Ferlus's recordings of Mon-Khmer (Austroasiatic) languages
(CNRS) {{Authority control Language families