The Ili Turki Alphabet

Ili Turki is a critically endangered Karluk Turkic language ^[1] spoken in the Ili River valley of Xinjiang, China. Fewer than 100 fluent speakers remain, making it one of the most endangered Turkic languages in the world.

The Ili River valley has been a historically significant corridor connecting China with Central Asia since ancient times — part of the Silk Road network. The Ili Turki community descends from settled Turkic populations who lived in this region for centuries, distinct from the larger nomadic and semi-nomadic Kazakh and Kyrgyz communities of the same area.

Ili Turki belongs to the Chagatay branch of Karluk Turkic ^[1]. Classical Chagatai (or Chaghatay) was the prestige literary Turkic language of Central Asia from the 14th to 20th centuries — used by poets including Alisher Navoi and by rulers including Babur, founder of the Mughal Empire.

Ili Turki is a vernacular descendant of this Chagatay tradition, having evolved separately in the isolated Ili River valley. While Classical Chagatai died as a literary language, its spoken descendants — including Uzbek, Uyghur, and Ili Turki — survive. Ili Turki preserves archaic Chagatay features that have been lost or changed in the more widely spoken Uzbek and Uyghur.

Ili Turki is critically endangered ^[1] because its small speaker community — fewer than 100 fluent speakers, all elderly — has experienced massive language shift toward Uyghur and Mandarin Chinese over the past century. No children are acquiring Ili Turki as a first language.

The language's extreme endangerment reflects the pressure on small minority languages throughout Xinjiang, where Mandarin and Uyghur dominate education, media, and public life. Ili Turki's small speaker base — always a tiny community — made it especially vulnerable to assimilation. Without urgent documentation, the language faces extinction within a generation.

Ili Turki and Uyghur ^[2] are both Karluk Turkic languages of Xinjiang, sharing the Perso-Arabic script and significant vocabulary. However, Ili Turki shows stronger Chagatay and Uzbek affinities, while Uyghur is classified in a separate Karluk subgroup.

Key differences include Ili Turki's preservation of archaic Chagatay vocabulary and certain phonological features, such as the retention of word-final consonants that Uyghur has dropped. Despite these differences, Ili Turki speakers in the Ili valley have typically been bilingual in Uyghur, which has contributed to convergence and language shift.

The Ili River ^[1] (also Yili or Ili) flows approximately 1,439 km westward from the Tian Shan mountains through Xinjiang in China into Kazakhstan, where it empties into Lake Balkhash. The fertile Ili valley was historically an important agricultural and trade corridor.

The Ili valley has been a crossroads of civilisations — it was part of the Silk Road, home to various Turkic and Mongol confederacies, and later a Chinese imperial frontier zone. Today the city of Yining (Gulja) is the main urban centre of the valley, home to Uyghur, Kazakh, Han Chinese, and small communities of Ili Turki speakers.

Ili Turki has been documented by linguists ^[2] working with the small remaining speaker community in Xinjiang. Linguistic fieldwork has produced descriptive grammars and vocabulary records — the primary means of preserving knowledge of the language for future scholarship.

Documentation of critically endangered languages like Ili Turki is urgent because when the last fluent speakers pass away, no living transmission is possible. The recordings and descriptions produced by fieldwork linguists become the only remaining access to the language's phonology, grammar, and vocabulary. International organisations such as ELDP (Endangered Language Documentation Programme) have supported similar documentation work in Xinjiang.

The ISO 639-3 code for Ili Turki is ili ^[2] (registered by SIL International). The language is also known as Ili Sart Chagatay, Ili Sart, or Ili Turki. It has no ISO 639-1 or ISO 639-2 code due to its very small speaker population.

The ISO code ili distinguishes Ili Turki from related languages: Uzbek (uzb/uz), Uyghur (uig/ug), and Aini (aib). The separate code acknowledges Ili Turki as a distinct language entity with unique phonological features and a distinct speech community, even within the Karluk Turkic continuum of Xinjiang.

The Ili River valley ^[1] was a key segment of the Silk Road's northern route, connecting China's western frontier with the Kazakh steppe and Central Asian oasis cities. Merchants, missionaries, diplomats, and armies traversed the valley for centuries.

The valley's linguistic history reflects this role — Turkic, Mongolic, Iranian, and Chinese populations all left traces in the local languages. Ili Turki's Persian and Arabic loanwords, absorbed via the Silk Road trade, coexist alongside Turkic core vocabulary. The valley's multilingual heritage makes Ili Turki a living record of Central Asian cross-cultural exchange.