The Baltic languages are a branch of the
Indo-European
The Indo-European languages are a language family native to the northern Indian subcontinent, most of Europe, and the Iranian plateau with additional native branches found in regions such as Sri Lanka, the Maldives, parts of Central Asia (e. ...
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 natively or as a second language by a population of about 6.5–7.0 million people
[''"Lietuviai Pasaulyje"''](_blank)
(PDF) (in Lithuanian). Lietuvos statistikos departamentas. Retrieved 5 May 2015. mainly in areas extending east and southeast of the
Baltic Sea
The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by the countries of Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden, and the North European Plain, North and Central European Plain regions. It is the ...
in
Europe
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...
. Together with the
Slavic languages
The Slavic languages, also known as the Slavonic languages, are Indo-European languages spoken primarily by the Slavs, Slavic peoples and their descendants. They are thought to descend from a proto-language called Proto-Slavic language, Proto- ...
, they form the
Balto-Slavic branch of the Indo-European family.
Scholars usually regard them as a single
subgroup
In group theory, a branch of mathematics, a subset of a group G is a subgroup of G if the members of that subset form a group with respect to the group operation in G.
Formally, given a group (mathematics), group under a binary operation  ...
divided into two branches:
West Baltic (containing only
extinct language
An extinct language or dead language is a language with no living native speakers. A dormant language is a dead language that still serves as a symbol of ethnic identity to an ethnic group; these languages are often undergoing a process of r ...
s) and
East Baltic (containing at least two
living languages,
Lithuanian,
Latvian, and by some counts including
Latgalian and
Samogitian as separate languages rather than dialects of those two). In addition, the existence of the
Dnieper-Oka language is hypothesized, with the extinct
Golyad language being the only known member. The range of the East Baltic linguistic influence once possibly reached as far as the
Ural Mountains, but this hypothesis has been questioned.
Old Prussian, a Western Baltic language that became extinct in the 18th century, had possibly
conserved the greatest number of properties from
Proto-Baltic
Proto-Baltic (PB, PBl, Common Baltic) is the Attested language, unattested, Linguistic reconstruction, reconstructed ancestral proto-language of all Baltic languages. It is not attested in writing, but has been partly reconstructed through the com ...
.
Although related, Lithuanian, Latvian, and particularly Old Prussian have lexicons that differ substantially from one another and so the languages are not
mutually intelligible. Relatively low mutual interaction for neighbouring languages historically led to gradual erosion of mutual intelligibility, and development of their respective linguistic innovations that did not exist in shared
Proto-Baltic
Proto-Baltic (PB, PBl, Common Baltic) is the Attested language, unattested, Linguistic reconstruction, reconstructed ancestral proto-language of all Baltic languages. It is not attested in writing, but has been partly reconstructed through the com ...
. The substantial number of
false friends and various uses and sources of
loanwords from their surrounding languages are considered to be the major reasons for poor mutual intelligibility today.
Branches
Within Indo-European, the Baltic languages are generally classified as forming a single family with two branches: Eastern and Western Baltic. But these two branches are sometimes classified as independent branches of
Balto-Slavic itself.
History
It is believed that the Baltic languages are among the
most conservative of the currently remaining Indo-European languages, despite their late
attestation.
Although the Baltic
Aesti
The Aesti (also Aestii, Astui or Aests) were an ancient people first described by the Roman historian Tacitus in his treatise ''Germania'' (circa 98 AD). According to Tacitus, the territory of Aesti was located somewhere east of the ''Suiones'' ...
tribe was mentioned by
ancient historians such as Tacitus as early as 98 CE, the first attestation of a Baltic language was 1369, in a Basel
epigram
An epigram is a brief, interesting, memorable, sometimes surprising or satirical statement. The word derives from the Greek (, "inscription", from [], "to write on, to inscribe"). This literary device has been practiced for over two millennia ...
of two lines written in Old Prussian. Lithuanian was first attested in a printed book, which is a
Catechism
A catechism (; from , "to teach orally") is a summary or exposition of Catholic theology, doctrine and serves as a learning introduction to the Sacraments traditionally used in catechesis, or Christian religious teaching of children and adult co ...
by
Martynas Mažvydas published in 1547. Latvian appeared in a printed Catechism in 1585.
One reason for the late attestation is that the Baltic peoples
resisted Christianization longer than any other Europeans, which delayed the introduction of writing and isolated their languages from outside influence.
With the establishment of a
German state in Prussia, and the mass influx of Germanic (and to a lesser degree Slavic-speaking) settlers, the Prussians began to be assimilated, and by the end of the 17th century, the Prussian language had become extinct.
After the
Partitions of Polish-Lithuanian Commonwealth, most of the Baltic lands were under the rule of the
Russian Empire
The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...
, where the native languages or alphabets were sometimes prohibited from being written down or used publicly in a
Russification effort (see
Lithuanian press ban
The Lithuanian press ban () was a ban on all Lithuanian language publications printed in the Latin alphabet, in force from 1865 to 1904, within the Russian Empire, which controlled Lithuania proper at the time. Lithuanian-language publications t ...
for the ban in force from 1864 to 1904).
Geographic distribution

Speakers of modern Baltic languages are generally concentrated within the borders of
Lithuania
Lithuania, officially the Republic of Lithuania, is a country in the Baltic region of Europe. It is one of three Baltic states and lies on the eastern shore of the Baltic Sea, bordered by Latvia to the north, Belarus to the east and south, P ...
and
Latvia
Latvia, officially the Republic of Latvia, is a country in the Baltic region of Northern Europe. It is one of the three Baltic states, along with Estonia to the north and Lithuania to the south. It borders Russia to the east and Belarus to t ...
, and in emigrant communities in the
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
,
Canada
Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
,
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
and the countries within the former borders of the
Soviet Union
The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
.
Historically the languages were spoken over a larger area: west to the mouth of the
Vistula
The Vistula (; ) is the longest river in Poland and the ninth-longest in Europe, at in length. Its drainage basin, extending into three other countries apart from Poland, covers , of which is in Poland.
The Vistula rises at Barania Góra i ...
river in present-day
Poland
Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...
, at least as far east as the
Dniepr river in present-day
Belarus
Belarus, officially the Republic of Belarus, is a landlocked country in Eastern Europe. It is bordered by Russia to the east and northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Belarus spans an a ...
, perhaps even to
Moscow
Moscow is the Capital city, capital and List of cities and towns in Russia by population, largest city of Russia, standing on the Moskva (river), Moskva River in Central Russia. It has a population estimated at over 13 million residents with ...
, and perhaps as far south as
Kyiv
Kyiv, also Kiev, is the capital and most populous List of cities in Ukraine, city of Ukraine. Located in the north-central part of the country, it straddles both sides of the Dnieper, Dnieper River. As of 1 January 2022, its population was 2, ...
. Key evidence of Baltic language presence in these regions is found in
hydronyms (names of bodies of water) that are characteristically Baltic. The use of hydronyms is generally accepted to determine the extent of a culture's influence, but ''not'' the date of such influence.
The eventual expansion of the use of
Slavic languages
The Slavic languages, also known as the Slavonic languages, are Indo-European languages spoken primarily by the Slavs, Slavic peoples and their descendants. They are thought to descend from a proto-language called Proto-Slavic language, Proto- ...
in the south and east, and
Germanic languages
The Germanic languages are a branch of the Indo-European languages, Indo-European language family spoken natively by a population of about 515 million people mainly in Europe, North America, Oceania, and Southern Africa. The most widely spoke ...
in the west, reduced the geographic distribution of Baltic languages to a fraction of the area that they formerly covered. The Russian geneticist Oleg Balanovsky speculated that there is a predominance of the assimilated pre-Slavic substrate in the genetics of East and West Slavic populations, according to him the common genetic structure which contrasts East Slavs and Balts from other populations may suggest that the pre-Slavic substrate of the
East Slavs
The East Slavs are the most populous subgroup of the Slavs. They speak the East Slavic languages, and formed the majority of the population of the medieval state Kievan Rus', which they claim as their cultural ancestor.John Channon & Robert Huds ...
consists most significantly of Baltic-speakers, which predated the Slavs in the cultures of the
Eurasian steppe
The Eurasian Steppe, also called the Great Steppe or The Steppes, is the vast steppe ecoregion of Eurasia in the temperate grasslands, savannas and shrublands biome. It stretches through Manchuria, Mongolia, Xinjiang, Kazakhstan, Siberia, Europea ...
according to archaeological references he cites.
Contact with Uralic languages
Though
Estonia
Estonia, officially the Republic of Estonia, is a country in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the Baltic Sea across from Sweden, to the south by Latvia, and to the east by Ru ...
is geopolitically included among the
Baltic states
The Baltic states or the Baltic countries is a geopolitical term encompassing Estonia, Latvia, and Lithuania. All three countries are members of NATO, the European Union, the Eurozone, and the OECD. The three sovereign states on the eastern co ...
due to its location,
Estonian is a
Finnic language of the
Uralic language family and is not related to the Baltic languages, which are
Indo-European
The Indo-European languages are a language family native to the northern Indian subcontinent, most of Europe, and the Iranian plateau with additional native branches found in regions such as Sri Lanka, the Maldives, parts of Central Asia (e. ...
.
The
Mordvinic languages, spoken mainly along western tributaries of the
Volga
The Volga (, ) is the longest river in Europe and the longest endorheic basin river in the world. Situated in Russia, it flows through Central Russia to Southern Russia and into the Caspian Sea. The Volga has a length of , and a catchment ...
, show several dozen loanwords from one or more Baltic languages. These may have been mediated by contacts with the Eastern Balts along the river
Oka. In regards to the same geographical location,
Asko Parpola
Asko Heikki Siegfried Parpola (born 12 July 1941, in Forssa) is a Finnish Indologist, current professor emeritus of Indology at the University of Helsinki. He specializes in the Indus Valley Civilization, specifically the study of the Indus scr ...
, in a 2013 article, suggested that the Baltic presence in this area, dated to –600 CE, is due to an "elite superstratum". However, linguist argued that the Volga-Oka is a ''secondary'' Baltic-speaking area, expanding from East Baltic, due to a large number of Baltic loanwords in Finnic and
Saami.
Finnish scholars also indicate that Latvian had extensive contacts with
Livonian, and, to a lesser extent, to
Estonian and
South Estonian. Therefore, this contact accounts for the number of Finnic hydronyms in Lithuania and Latvia that increase in a northwards direction.
Parpola, in the same article, supposed the existence of a Baltic substratum for Finnic, in Estonia and coastal Finland. In the same vein, Kallio argues for the existence of a lost "North Baltic language" that would account for loanwords during the evolution of the Finnic branch.
Comparative linguistics
Genetic relatedness

The Baltic languages are of particular interest to linguists because they retain many archaic features, which are thought to have been present in the early stages of the
Proto-Indo-European language
Proto-Indo-European (PIE) is the reconstructed common ancestor of the Indo-European language family. No direct record of Proto-Indo-European exists; its proposed features have been derived by linguistic reconstruction from documented Indo-Eu ...
.
However, linguists have had a hard time establishing the precise relationship of the Baltic languages to other languages in the Indo-European family.
Several of the extinct Baltic languages have a limited or nonexistent written record, their existence being known only from the records of ancient historians and personal or place names. All of the languages in the Baltic group (including the living ones) were first written down relatively late in their probable existence as distinct languages. These two factors combined with others have obscured the history of the Baltic languages, leading to a number of theories regarding their position in the Indo-European family.
The Baltic languages show a close relationship with the Slavic languages, and are grouped with them in a
Balto-Slavic family by most scholars. This family is considered to have developed from a common ancestor,
Proto-Balto-Slavic
Proto-Balto-Slavic (PBS or PBSl) is a reconstructed hypothetical proto-language descending from Proto-Indo-European (PIE). From Proto-Balto-Slavic, the later Balto-Slavic languages are thought to have developed, composed of the Baltic and Sla ...
. Later on, several lexical, phonological and morphological dialectisms developed, separating the various Balto-Slavic languages from each other.
Although it is generally agreed that the Slavic languages developed from a single more-or-less unified dialect (
Proto-Slavic
Proto-Slavic (abbreviated PSl., PS.; also called Common Slavic or Common Slavonic) is the unattested, reconstructed proto-language of all Slavic languages. It represents Slavic speech approximately from the 2nd millennium BC through the 6th ...
) that split off from common Balto-Slavic, there is more disagreement about the relationship between the Baltic languages.
The traditional view is that the Balto-Slavic languages split into two branches, Baltic and Slavic, with each branch developing as a single common language (Proto-Baltic and Proto-Slavic) for some time afterwards. Proto-Baltic is then thought to have split into East Baltic and West Baltic branches. However, more recent scholarship has suggested that there was no unified Proto-Baltic stage, but that Proto-Balto-Slavic split directly into three groups: Slavic, East Baltic and West Baltic. Under this view, the Baltic family is
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 consists of all Balto-Slavic languages that are not Slavic. In the 1960s
Vladimir Toporov and
Vyacheslav Ivanov made the following conclusions about the relationship between the Baltic and Slavic languages:
* the Proto-Slavic language formed out of peripheral-type Baltic dialects;
* the Slavic linguistic type formed later from the structural model of the Baltic languages;
* the Slavic structural model is a result of the transformation from the Baltic languages structural model.
These scholars' theses do not contradict the close relationship between Baltic and Slavic languages and, from a historical perspective, specify the Baltic-Slavic languages' evolution – the terms 'Baltic' and 'Slavic' are relevant only from the point of view of the present time, meaning
diachronic changes, and the oldest stage of the language development could be called both Baltic and Slavic;
this concept does not contradict the traditional thesis that the
Proto-Slavic
Proto-Slavic (abbreviated PSl., PS.; also called Common Slavic or Common Slavonic) is the unattested, reconstructed proto-language of all Slavic languages. It represents Slavic speech approximately from the 2nd millennium BC through the 6th ...
and
Proto-Baltic
Proto-Baltic (PB, PBl, Common Baltic) is the Attested language, unattested, Linguistic reconstruction, reconstructed ancestral proto-language of all Baltic languages. It is not attested in writing, but has been partly reconstructed through the com ...
languages coexisted for a long time after their formation – between the
2nd millennium BC
File:2nd millennium BC montage.jpg, 400x400px, From top left clockwise: Hammurabi, Babylonian king, best known for his Code of Hammurabi, code of laws; The gold Mask of Tutankhamun, funerary mask of Tutankhamun has become a symbol of ancient Egypt ...
and circa the
5th century BC – the Proto-Slavic language was a
continuum of the Proto-Baltic dialects, more rather, the Proto-Slavic language should have been localized in the peripheral circle of Proto-Baltic dialects.
Finally, a minority of scholars argue that Baltic descended directly from Proto-Indo-European, without an intermediate common Balto-Slavic stage. They argue that the many similarities and shared innovations between Baltic and Slavic are caused by several millennia of contact between the groups, rather than a shared heritage.
Thracian hypothesis
The Baltic-speaking peoples likely encompassed an area in eastern Europe much larger than their modern range. As in the case of the
Celtic languages
The Celtic languages ( ) are a branch of the Indo-European language family, descended from the hypothetical Proto-Celtic language. The term "Celtic" was first used to describe this language group by Edward Lhuyd in 1707, following Paul-Yve ...
of Western Europe, they were reduced by invasion, extermination and assimilation. Studies in
comparative linguistics
Comparative linguistics is a branch of historical linguistics that is concerned with comparing languages to establish their historical relatedness.
Genetic relatedness implies a common origin or proto-language and comparative linguistics aim ...
point to
genetic relationship between the languages of the Baltic family and the following extinct languages:
*
Dacian[Schall H. "Sudbalten und Daker. Vater der Lettoslawen". In: ''Primus congressus studiorum thracicorum. Thracia II''. Serdicae, 1974, pp. 304, 308, 310.][Radulescu M. ''The Indo-European position of lllirian, Daco-Mysian and Thracian: a historic Methodological Approach''. 1987. ]
*
Thracian
The Thracians (; ; ) were an Indo-European speaking people who inhabited large parts of Southeast Europe in ancient history.. "The Thracians were an Indo-European people who occupied the area that today is shared between north-eastern Greece, ...
The Baltic classification of Dacian and Thracian has been proposed by the Lithuanian scientist
Jonas Basanavičius, who insisted this is the most important work of his life and listed 600 identical words of Balts and
Thracians
The Thracians (; ; ) were an Indo-European languages, Indo-European speaking people who inhabited large parts of Southeast Europe in ancient history.. "The Thracians were an Indo-European people who occupied the area that today is shared betwee ...
. His theory included
Phrygian in the related group, but this did not find support and was disapproved among other authors, such as
Ivan Duridanov, whose own analysis found Phrygian completely lacking parallels in either Thracian or Baltic languages.
The Bulgarian linguist Ivan Duridanov, who improved the most extensive list of toponyms, in his first publication claimed that Thracian is genetically linked to the Baltic languages and in the next one he made the following classification:
"The Thracian language formed a close group with the Baltic, the Dacian and the " Pelasgian" languages. More distant were its relations with the other Indo-European languages, and especially with Greek, the Italic and Celtic languages, which exhibit only isolated phonetic similarities with Thracian; the Tokharian and the Hittite were also distant. "
Of about 20
reconstructed Thracian wordsby Duridanov most cognates (138) appear in the Baltic languages, mostly in Lithuanian, followed by Germanic (61), Indo-Aryan (41), Greek (36), Bulgarian (23), Latin (10) and Albanian (8). The cognates of the
reconstructed Dacian words in his publication are found mostly in the Baltic languages, followed by Albanian. Parallels have enabled linguists, using the techniques of
comparative linguistics
Comparative linguistics is a branch of historical linguistics that is concerned with comparing languages to establish their historical relatedness.
Genetic relatedness implies a common origin or proto-language and comparative linguistics aim ...
, to decipher the meanings of several Dacian and Thracian placenames with, they claim, a high degree of probability. Of 74
Dacian placenames attested in primary sources and considered by Duridanov, a total of 62 have Baltic cognates, most of which were rated "certain" by Duridanov. For a big number of 300
Thracian geographic names most parallels were found between Thracian and Baltic geographic names in the study of Duridanov. According to him the most important impression make the geographic cognates of Baltic and Thracian
"the similarity of these parallels stretching frequently on the main element and the suffix simultaneously, which makes a strong impression".
Romanian linguist
Sorin Paliga, analysing and criticizing Harvey Mayer's study, did admit "great likeness" between Thracian, the
substrate of Romanian, and "some Baltic forms".
[Paliga, Sorin.]
Tracii şi dacii erau nişte „baltoizi”?
ere Thracians and Dacians ‘Baltoidic’? In: ''Romanoslavica'' XLVIII, nr. 3 (2012): 149–150.
See also
*
Historical linguistics
Historical linguistics, also known as diachronic linguistics, is the scientific study of how languages change over time. It seeks to understand the nature and causes of linguistic change and to trace the evolution of languages. Historical li ...
*
Dacian–Baltic connection
References
Bibliography
*
* provides a number of articles on modern and archaic Baltic languages
*
*
*
*
*
*
*
*
*
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*
Literature
*
*
*
Further reading
;On Baltic hydronymy:
*
*
*
*
*
*
*
;On Baltic-Uralic contacts:
*
*
*
*
External links
Baltic Onlineby Virginija Vasiliauskiene, Lilita Zalkalns, and Jonathan Slocum, free online lessons at th
Linguistics Research Centerat the
University of Texas at Austin
The University of Texas at Austin (UT Austin, UT, or Texas) is a public university, public research university in Austin, Texas, United States. Founded in 1883, it is the flagship institution of the University of Texas System. With 53,082 stud ...
{{DEFAULTSORT:Baltic Languages
Indo-European languages