The Turki language is a Türkic literary language active from the 13th to the 19th centuries, used by different (predominantly but not exclusively) Türkic peoples. The Turki language developed on the Karluk (Karluk-Khorezm languages) basis, which was a result of interaction of the Karakhanid language with the local Türkic languages (gradual replacement of d-type language with a j-type language). The Karakhanid Karluk language was adapted for a cycle of works in Khorezm, where it was enriched by Oguz and Kipchak elements and turned into one of the medieval Türkic languages. With the Turki were created Qutba's poem "Khosrow and Shirin" (1338), Khwarizmi "Muhabbat-name" (1353), Sutro Sarai "Gulistan bi-t-Türki" (1391), Mahmud al-Bukhari theological and didactic work "Nahj al faradis"(1358).