Bayat (tribe) in the context of "Turkoman (ethnonym)"

Turkoman, also known as Turcoman (English: /ˈtɜːrkəmən/), was a term for the people of Oghuz Turkic origin, widely used during the Middle Ages. Oghuz Turks were a western Turkic people that, in the 8th century A.D, formed a tribal confederation in an area between the Aral and Caspian seas in Central Asia, and spoke the Oghuz branch of the Turkic language family. Today, much of the populations of Turkey, Azerbaijan and Turkmenistan are direct descendants of Oghuz Turks once called Turkomans.

Turkmen, originally an exonym, dates from the High Middle Ages, along with the ancient and familiar name "Turk" (türk), and tribal names such as "Bayat", "Bayandur", "Afshar", and "Kayi". By the 10th century, Islamic sources were referring to Oghuz Turks as Muslim Turkmens, as opposed to Tengrist or Buddhist Turks. It entered into the usage of the Western world through the Byzantines in the 12th century, since by that time Oghuz Turks were overwhelmingly Muslim. Later, the term "Oghuz" was gradually supplanted by "Turkmen" among Oghuz Turks themselves, thus turning an exonym into an endonym, a process which was completed by the beginning of the 13th century.