Old Uyghur
Old Uyghur (simplified Chinese: 回鹘语; traditional Chinese: 回鶻語; pinyin: Huíhú yǔ) was a Turkic language spoken in Qocho from the 9th–14th centuries as well as in Gansu. == History == Old Uyghur evolved from Old Turkic, a Siberian Turkic language, after the Uyghur Khaganate broke up and remnants of it migrated to Turfan, Qomul (later Hami), and Gansu in the ninth century.