The Tai, Zhuang–Tai, or Daic languages
(
Ahom: 𑜁𑜪𑜨 𑜄𑜩 or 𑜁𑜨𑜉𑜫 𑜄𑜩 ; ; or , ; , ) are a branch of the
Kra–Dai language family. The Tai languages include the most widely spoken of the Tai–Kadai languages, including Standard
Thai or Siamese, the national language 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 ...
;
Lao or Laotian, the national language of
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 ...
;
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 ...
's
Shan language; and
Zhuang, a major language in the Southwestern China's
Guangxi Zhuang Autonomous Region, spoken by the
Zhuang people
The Zhuang (; ; , , Sawndip: 佈獞) are a Tai-speaking ethnic group who mostly live in the Guangxi Zhuang Autonomous Region in Southern China. Some also live in the Yunnan, Guangdong, Guizhou, and Hunan provinces. They form one of the 56 ...
(), the largest minority ethnic group in
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 ...
, with a population of 15.55 million, living mainly in
Guangxi
Guangxi,; officially the Guangxi Zhuang Autonomous Region, is an Autonomous regions of China, autonomous region of the China, People's Republic of China, located in South China and bordering Vietnam (Hà Giang Province, Hà Giang, Cao Bằn ...
, the rest scattered across
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 ...
,
Guangdong
) means "wide" or "vast", and has been associated with the region since the creation of Guang Prefecture in AD 226. The name "''Guang''" ultimately came from Guangxin ( zh, labels=no, first=t, t= , s=广信), an outpost established in Han dynasty ...
,
Guizhou
)
, image_skyline =
, image_caption =
, image_map = Guizhou in China (+all claims hatched).svg
, mapsize = 275px
, map_alt = Map showing the location of Guizhou Province
, map_caption = Map s ...
, and
Hunan
Hunan is an inland Provinces of China, province in Central China. Located in the middle reaches of the Yangtze watershed, it borders the Administrative divisions of China, province-level divisions of Hubei to the north, Jiangxi to the east, Gu ...
provinces.
Name
Cognates with the name ''Tai'' (''Thai'', ''Dai'', etc.) are used by speakers of many Tai languages. The term ''Tai'' is now well-established as the generic name in English. In his book'' The Tai-Kadai Languages'', Anthony Diller claims that Lao scholars he has met are not pleased with Lao being regarded as a Tai language.
[Diller, Anthony; Edmondson, Jerry; Luo, Yongxian (2004). The Tai-Kadai Languages](_blank)
''Routledge (2004)'', pp. 5–6. . For some, Thai should instead be considered a member of the Lao language family.
One or more Ancient Chinese characters for 'Lao' may be cited in support of this alternative appellation.
Some scholars, including
Benedict (1975), have used ''Thai'' to refer to a wider (''Tai'') grouping and one sees designations like ''
proto-Thai'' and ''
Austro-Thai'' in earlier works.
In the institutional context in Thailand, and occasionally elsewhere, sometimes ''Tai'' (and its corresponding Thai-script spelling, without a final -y symbol) is used to indicate varieties in the language family not spoken in Thailand or spoken there only as the result of recent immigration.
In this usage, ''Thai'' would not then be considered a ''Tai'' language.
On the other hand,
Gedney,
Li and others have preferred to call the standard language of Thailand ''Siamese'' rather than ''Thai'', perhaps to reduce potential ''Thai/Tai'' confusion, especially among English speakers not comfortable with making a
word-initial unaspirated voiceless sound for ''Tai'', which in any event might sound artificial or arcane to outsiders.
According to
Michel Ferlus, the ethnonyms Tai/Thai (or Tay/Thay) would have evolved from the etymon *k(ə)ri: 'human being' through the following chain: kəri: > kəli: > kədi:/kədaj (-l- > -d- shift in tense sesquisyllables and probable diphthongization of -i: > -aj).
[Ferlus, Michel (2009). Formation of Ethnonyms in Southeast Asia](_blank)
''42nd International Conference on Sino-Tibetan Languages and Linguistics, Nov 2009, Chiang Mai, Thailand. 2009'', p.3.[Pain, Frédéric (2008). An Introduction to Thai Ethnonymy: Examples from Shan and Northern Thai](_blank)
''Journal of the American Oriental Society Vol. 128, No. 4 (Oct. – Dec., 2008)'', p.646. This in turn changed to di:/daj (presyllabic truncation and probable diphthongization -i: > -aj). And then to *daj
A (Proto-Southwestern Tai) > tʰaj
A2 (in Siamese and Lao) or > taj
A2 (in the other Southwestern and Central Tai languages by Li Fangkuei).
Michel Ferlus' work is based on some simple rules of phonetic change observable in the Sinosphere and studied for the most part by
William H. Baxter (1992).
The Central Tai languages are called ''Zhuang'' in China and ''Tay'' and ''Nung'' 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 ...
.
History

Citing the fact that both the Zhuang and Thai peoples have the same
exonym
An endonym (also known as autonym ) is a common, name for a group of people, individual person, geographical place, language, or dialect, meaning that it is used inside a particular group or linguistic community to identify or designate them ...
for the
Vietnamese, ''kɛɛu
A1'', derived from the name of
Jiaozhi in Vietnam, and that the indigenous
Bai Yue were given family names by their northern rulers during the
Northern and Southern dynasties
The Northern and Southern dynasties () was a period of political division in the history of China that lasted from 420 to 589, following the tumultuous era of the Sixteen Kingdoms and the Eastern Jin dynasty. It is sometimes considered a ...
, while the Thai didn't have family names into the 19th century,
Jerold A. Edmondson of the
University of Texas at Arlington posited that the split between Zhuang (a
Central Tai language) and the
Southwestern Tai languages happened no earlier than the founding of Jiaozhi in 112 BCE but no later than the 5th–6th century AD. Based on layers of Chinese loanwords in Proto-Southwestern Tai and other historical evidence, Pittayawat Pittayaporn (2014) suggests that the dispersal of Southwestern Tai must have begun sometime between the 8th and 10th centuries AD.
[Pittayaporn, Pittayawat (2014). Layers of Chinese Loanwords in Proto-Southwestern Tai as Evidence for the Dating of the Spread of Southwestern Tai](_blank)
''MANUSYA: Journal of Humanities,'' Special Issue No 20: 47–64.
Connection to ancient Yue language(s)
The Tai languages descend from
proto-Kra–Dai, which has been hypothesized to originate in the Lower Yangtze valleys. Ancient Chinese texts refer to non-Sinitic languages spoken across this substantial region and their speakers as ''"
Yue"''. Although those languages are extinct, traces of their existence could be found in unearthed inscriptional materials, ancient Chinese historical texts and non-Han substrata in various Southern Chinese dialects. Thai, as the most-spoken language in the
Tai-Kadai language family, has been used extensively in historical-comparative linguistics to identify the origins of language(s) spoken in the ancient region of South China. One of the very few direct records of non-Sinitic speech in pre-Qin and Han times having been preserved so far is the ''"
Song of the Yue Boatman
The Song of the Yue Boatman () is a short song in an ancient language of southern China in the Yangtze River valley said to have been recorded around 528 BC.
A transcription using Chinese characters, together with a Chinese version, is preser ...
"'' (Yueren Ge 越人歌), which was transcribed phonetically in Chinese characters in 528 BC, and found in the 善说 Shanshuo chapter of the Shuoyuan 说苑 or 'Garden of Persuasions'. In the early 1980s the
Zhuang linguist Wei Qingwen using reconstructed Old Chinese for the characters discovered that the resulting vocabulary showed strong resemblance to
modern Zhuang. Later, Zhengzhang Shangfang (1991) followed Wei's insight but used
Thai orthography for comparison, since this orthography dates from the 13th century and preserves archaisms vis-à-vis the modern pronunciation.
Internal classification
Haudricourt (1956)
Haudricourt emphasizes the specificity of Dioi (Zhuang) and proposes to make a two-way distinction between the following two sets. The original language names used in Haudricourt's (1956) are provided first; alternative names are given in parentheses.
* Tai
** Dioi group:
Yei Zhuang,
Yongbei Zhuang,
Youjiang Zhuang,
Bouyei (Buyi)
** Tai proper:
Ahom,
Shan,
Siamese (Thai),
Lao,
White Tai (Tai Dón),
Black Tai (Tai Dam),
Southern Zhuang,
Tho (Tày),
Nung
Characteristics of the Dioi group pointed out by Haudricourt are
* r- corresponding to the lateral l- in the other Tai languages,
* divergent vowel system characteristics, e.g. 'tail' has an /a/ vowel in Tai proper, as against /ə̄/ in Bo-ai, /iə/ in Tianzhou, and /ɯə/ in Tianzhou and Wuming, and
* the lack of aspirated stops and affricates, which are found everywhere in Tai proper.
Li (1977)
Li Fang-Kuei divided Tai into three sister branches.
* Tai
**
Northern Tai
**
Central Tai
**
Southwestern Tai (Thai)
Li's Northern group corresponds to Haudricourt's Dioi group, while his Central and Southwestern groups correspond to Haudricourt's Tai proper. The three last languages in Haudricourt's list of 'Tai proper' languages are
Tho (Tày),
Longzhou, and
Nung, which Li classifies as 'Central Tai'.
This classification scheme has long been accepted as standard in comparative Tai linguistics. However, Central Tai does not appear to be a
monophyletic
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria:
# the grouping contains its own most recent co ...
group.
Gedney (1989)
Gedney (1989) considers Central and Southwestern Tai to form a subgroup, of which Northern Tai is a sister. The top-level branching is in agreement with Haudricourt (1956).
* Tai
**
Northern Tai
**
***
Central Tai
***
Southwestern Tai
Luo (1997)
Luo Yongxian (1997) classifies the Tai languages as follows, introducing a fourth branch called ''Northwestern Tai'' that includes
Ahom,
Shan,
Dehong Dai, and
Khamti. All branches are considered to be coordinate to each other.
* Tai
**
Northern Tai
**
Central Tai
**
Southwestern Tai
** Northwestern Tai
Pittayaporn (2009)
Overview
Pittayawat Pittayaporn (2009) classifies the Tai languages based on clusters of shared innovations (which, individually, may be associated with more than one branch) (Pittayaporn 2009:298). In Pittayaporn's preliminary classification system of the Tai languages,
Central Tai is considered to be
paraphyletic
Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In co ...
and is split up into multiple branches, with the
Zhuang varieties of
Chongzuo in southwestern
Guangxi
Guangxi,; officially the Guangxi Zhuang Autonomous Region, is an Autonomous regions of China, autonomous region of the China, People's Republic of China, located in South China and bordering Vietnam (Hà Giang Province, Hà Giang, Cao Bằn ...
(especially in the
Zuo River valley at the border to Vietnam) having the most internal diversity. The
Southwestern Tai and
Northern Tai branches remain intact as in
Li Fang-Kuei's 1977 classification system, and several of the Southern Zhuang languages allocated ISO codes are considered to be
paraphyletic
Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In co ...
. The classification is as follows.
* Tai
** D:
Northern Tai
*** I:
Qinzhou Zhuang (Yongnan Zhuang of
Qinzhou)
*** J
**** M:
Wuming Zhuang, Yongnan Zhuang,
Long'an Zhuang,
Fusui
**** N: Core
Northern Tai:
Saek,
Bouyei,
Yay,
Youjiang Zhuang and others
** C:
Chongzuo Zhuang (Yongnan Zhuang of
Chongzuo),
Shangsi Zhuang (Yongnan Zhuang of
Shangsi),
Caolan (Vietnam)
** B:
Ningming Zhuang (Zuojiang Zhuang of
Ningming)
** A
*** F:
Lungchow Zhuang,
Leiping Zhuang
*** E
**** H: Lungming Zhuang,
Daxin Zhuang
**** G
***** L (Nung):
Yang Zhuang of
Debao,
Yang Zhuang of
Jingxi,
(Western) Nung of
Mường Khương District,
Nong Zhuang of
Wenshan City),
Nong Zhuang of
Yanshan
***** K
****** P (Tay):
Tày of
Bảo Yên,
Tày of
Cao Bằng,
Dai Zhuang of Wenma (文麻)
****** O
******* R:
Sapa (Vietnam)
******* Q:
Southwestern Tai (Laos, Thailand, Burma)
Standard Zhuang
Standard Zhuang ( autonym: , ; pre-1982 autonym: ; Sawndip: ; ) is the official standardized form of the Zhuang languages, which are a branch of the Northern Tai languages. Its pronunciation is based on that of the Yongbei Zhuang dialect ...
is based on the dialect of Shuangqiao (双桥),
Wuming District.
Sound changes

The following phonological shifts occurred in the Q (Southwestern), N (Northern), B (Ningming), and C (Chongzuo) subgroups (Pittayaporn 2009:300–301).
Furthermore, the following shifts occurred at various nodes leading up to node Q.
* E: *p.t- > *p.r-; *ɯm > *ɤm
* G: *k.r- > *qr-
* K: *eː, *oː > *ɛː, *ɔː
* O: *ɤn > *on
* Q: *kr- > *ʰr-
Edmondson (2013)
Jerold A. Edmondson's (2013) computational phylogenetic analysis of the Tai languages is shown below.
Tay and
Nung are both shown to be coherent branches under
Central Tai.
Northern Tai and
Southwestern Tai are also shown to be coherent branches.
* Tai
**
Northern Tai:
Buyi,
Yay, Po-Ai,
Wuming Zhuang,
Mashan Zhuang
**
***
Central Tai
**** core
Central Tai: Nung Chau,
Pingxiang Zhuang, Leiping Zhuang,
Ningming Zhuang
****
Nung: Western Nung, Nung Yang, Nung An, Thu Lao
****
Tay: Tay Bao Lac, Tay Khanh Trung,
Cao Lan
***
Southwestern Tai:
Ahom,
Shan,
Dehong,
Tai Theeng (Nghe An),
Black Tai,
White Tai,
Padi,
Lao,
Thai
Reconstruction
Proto-Tai has been reconstructed in 1977 by
Li Fang-Kuei and by Pittayawat Pittayaporn in 2009. Proto-Southwestern Tai has also been reconstructed in 1977 by Li Fang-Kuei and by Nanna L. Jonsson in 1991.
Others have taken up specific area reconstructions, such as David Strecker's 1984 work regarding "Proto-Tai Personal Pronouns." Strecker's proposed system of personal pronouns in Proto-Tai involves "three numbers, three persons, an inclusive/exclusive distinction and an animate/non-animate distinction in the third person non-singular."
Comparison

Below is comparative table of Tai languages.
Writing systems

Many
Southwestern Tai languages are written using
Brahmi-derived alphabets.
Zhuang languages are traditionally written with
Chinese characters
Chinese characters are logographs used Written Chinese, to write the Chinese languages and others from regions historically influenced by Chinese culture. Of the four independently invented writing systems accepted by scholars, they represe ...
called
Sawndip, and now officially written with a romanized alphabet, though the traditional writing system is still in use to this day.
*
Thai script
The Thai script (, , ) is the abugida used to write Thai language, Thai, Southern Thai language, Southern Thai and many other languages spoken in Thailand. The Thai script itself (as used to write Thai) has 44 consonant symbols (, ), 16 vowel s ...
*
Lao script
*
Sawndip
*
Shan script
*
Ahom script
*
Tai Viet script
*
Tai Le script
The Tai Le script (ᥖᥭᥰ ᥘᥫᥴ, ), or Dehong Dai script, is a Brahmic scripts, Brahmic script used to write the Tai Nüa language spoken by the Tai Nua people of south-central Yunnan, China. (The language is also known as Nɯa, Dehong Da ...
*
New Tai Lue alphabet
*
Tai Tham script
See also
*
Miscellaneous Tai languages
*
Zomia (region)
Notes
References
Further reading
* Brown, J. Marvin. ''From Ancient Thai to Modern Dialects''. Bangkok: Social Science Association Press of Thailand, 1965.
* Chamberlain, James R. ''A New Look at the Classification of the Tai Languages''. [s.l: s.n, 1972.
* Conference on Tai Phonetics and Phonology, Jimmy G. Harris, and Richard B. Noss. ''Tai Phonetics and Phonology''. [Bangkok: Central Institute of English Language, Office of State Universities, Faculty of Science, Mahidol University, 1972.
* Diffloth, Gérard. ''An Appraisal of Benedict's Views on Austroasiatic and Austro-Thai Relations''. Kyoto: Center for Southeast Asian Studies, Kyoto University, 1976.
* Đoàn, Thiện Thuật. ''Tay-Nung Language in the North Vietnam''. [Tokyo?]: Instttute [sic] for the Study of Languages and Cultures of Asia and Africa, Tokyo University of Foreign Studies, 1996.
* Gedney, William J. ''On the Thai Evidence for Austro-Thai''. [S.l: s.n, 1976.
* Gedney, William J., and Robert J. Bickner. ''Selected Papers on Comparative Tai Studies''. Michigan papers on South and Southeast Asia, no. 29. Ann Arbor, Mich., USA: Center for South and Southeast Asian Studies, University of Michigan, 1989.
* Gedney, William J., Carol J. Compton, and John F. Hartmann. ''Papers on Tai Languages, Linguistics, and Literatures: In Honor of William J. Gedney on His 77th Birthday''. Monograph series on Southeast Asia.
e Kalb Northern Illinois University, Center for Southeast Asian Studies, 1992.
* Gedney, William J., and Thomas J. Hudak. (1995). ''William J. Gedney's central Tai dialects: glossaries, texts, and translations''. Michigan papers on South and Southeast Asia, no. 43. Ann Arbor, Mich: Center for South and Southeast Asian Studies, University of Michigan
* Gedney, William J., and Thomas J. Hudak. ''William J. Gedney's the Yay Language: Glossary, Texts, and Translations''. Michigan papers on South and Southeast Asia, no. 38. Ann Arbor, Mich: Center for South and Southeast Asian Studies, University of Michigan, 1991.
* Gedney, William J., and Thomas J. Hudak. ''William J. Gedney's Southwestern Tai Dialects: Glossaries, Texts and Translations''. Michigan papers on South and Southeast Asia, no. 42.
nn Arbor, Mich. Center for South and Southeast Asian Studies, University of Michigan, 1994.
* Hudak, Thomas John. ''William J. Gedney's The Tai Dialect of Lungming: Glossary, Texts, and Translations''. Michigan papers on South and Southeast Asia, no. 39.
nn Arbor Center for South and Southeast Asian Studies, University of Michigan, 1991.
* Li, Fang-kuei. 1977. ''Handbook of Comparative Tai''. Honolulu, Hawaii: University of Hawaiʼi Press.
* Li, Fang-kuei. ''The Tai Dialect of Lungchow; Texts, Translations, and Glossary''. Shanghai: Commercial Press, 1940.
* Østmoe, Arne. ''A Germanic–Tai Linguistic Puzzle''. Sino-Platonic papers, no. 64. Philadelphia, PA, USA: Dept. of Asian and Middle Eastern Studies, University of Pennsylvania, 1995.
* Sathāban Sūn Phāsā Qangkrit. ''Bibliography of Tai Language Studies''.
angkok Indigenous Languages of Thailand Research Project, Central Institute of English Language, Office of State Universities, 1977.
* Shorto, H. L. ''Bibliographies of Mon–Khmer and Tai Linguistics''. London oriental bibliographies, v. 2. London: Oxford University Press, 1963.
* Tingsabadh, Kalaya and Arthur S. Abramson. ''Essays in Tai Linguistics''. Bangkok: Chulalongkorn University Press, 2001.
External links
SEAlang LibraryComparative Tai–Kadai Swadesh vocabulary lists(from Wiktionary'
Swadesh-list appendix
ABVD: Proto-Tai word listABVD: Proto-Southwestern Tai word list* Kelley, Liam
Tai Words and the Place of the Tai in the Vietnamese Past
{{DEFAULTSORT:Tai Languages
Languages of Southeast Asia