Tocharian languages

Both languages were once spoken in the Tarim Basin in Central Asia, now the Xinjiang province of China. The name of the language is taken from the Tokharoi Τόχαροι of the Greek historians (Ptolemy VI, 11, 6). These are identified with the Kushan Empire, and the term Tokharistan usually refers to 1st millennium Bactria. A Turkic text refers to the Turfanian language (Tocharian A) as twqry. Interpretation is difficult, but F. W. K. Müller has associated this with the name of the Bactrian Tokharoi.

Tocharian is documented in manuscript fragments, mostly from the 7th and 8th centuries (with a few earlier ones) that were written on palm leaves, wooden tablets and Chinese paper, which had been preserved by the extremely dry climate of the Tarim Basin.
Tocharian A and B are not intercomprehensible, and properly speaking, based on the tentative interpretation of twqry as related to Tokharoi, only Tocharian A may be referred to as Tocharian, while Tocharian B could be called Kuchean (its native name may have been kuśiññe), but since their grammars are usually treated together, the terms A and B have proven useful. The common Proto-Tocharian language must preceed the attested languages by several centuries, probably dating to the 1st millennium BC.

. Kucha, China, 5th-8th century. Tokyo National Museum.
The existence of the Tocharian languages and alphabet was not even guessed at, until chance discoveries in the early 20th century brought to light fragments of manuscripts in a then unknown alphabetic syllabary that proved, astonishingly, to be in a hitherto unknown branch of the Indo-European family of languages, which has been named 'Tocharian'. The alphabet they were using is derived from the North Indian Brahmi alphabetic syllabary and is referred to as slanting Brahmi. It soon became apparent that a large proportion of the manuscripts were translations of known Buddhist works in Sanskrit and some of them were even bilingual, facilitating decipherment of the new language. Besides the Buddhist and Manichaean religious texts, there were also monastery correspondence and accounts, commercial documents, caravan permits, and medical and magical texts, and one love poem. Many Tocharians embraced Manichaean duality or Buddhism.

Tocharian has upset some theories about the relations of Indo-European languages and is revitalizing linguistic studies. The Tocharian languages are a major geographic exception to the usual pattern of Indo-European branches, being the only one that spread directly east from the theoretical Indo-European starting point in the Pontic steppe.

Tocharian probably died out under after 840, when the Uighurs were expelled from Mongolia by the Kirghiz, retreating to the Tarim Basin. This theory is supported by the discovery of translations of Tocharian texts into Uighur. During Uighur rule, the peoples mixed with the Uighurs to produce much of the modern population of Xinjiang.

Samples of the language have been discovered at sites in Kucha and Karasahr, including many mural inscriptions.

¹ = Cognate, with shifted meaning
² = Borrowed cognate, not native.
³ = English meaning, unrelated word

See also