Khazar language

Khazar, also known as Khazaric, was a Turkic dialect group spoken by the Khazars, a group of semi-nomadic Turkic peoples originating from Central Asia. There are few written records of the language and its features and characteristics are unknown. It is believed to have gradually become extinct by the 13th century AD as its speakers assimilated into neighboring Turkic-speaking populations.

There is a dispute among Turkic linguists and historians as to which branch of the Turkic language family it belongs to. One consideration believes it belongs to the Oghur ("lir") branch of the Turkic language family, while another consideration is that it belongs to the Common Turkic branch.