text: Old Uyghur () was a Turkic language which was 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.