Turkicization

Turkification (Turkish: Türkleştirme) is the transformation of entities, or cultures into the various historical Turkic states and cultures, such as the Ottoman Empire. As the Turkic states developed and grew, there were many instances of this cultural shift, voluntary and involuntary.

Peoples of the local population succumbed to the dual process of Turkification and Islamization include Anatolian, Balkan, Caucasian and Middle Eastern peoples from different ethnic origins, such as Albanians, Arabs, Armenians, Assyrians, Circassians, Greeks, Jews, Romani, Slavs, Iranic peoples such as Kurds, as well as Lazs from all the regions of the Ottoman Empire and Iran.

An early form of Turkification occurred in the time of the Seljuk Empire among the local population of Anatolia, involving intermarriages, religious conversion, linguistic shift, and interethnic relationships, which today is reflected in the predominant indigenous Anatolian genetic makeup nearly half of the modern Turkish people.

...
Wikipedia