Lexicology
The term is used in the Greek language since late-byzantine era as "τούρκεμα". It literally means "becoming muslim or Turk". For example: "Είχε τουρκέψει κάτω από βία, τον καιρό της άτυχης εκείνης επανάστασης του 1770, τούρκεμα κανονικό με "σουνέτι" (περιτομή) από Τούρκο παπά (Χότζα)", i.e. "He had been turkified by force, at the time of the unfortunate revolution of 1770. A real turkification, with circumcision by a Turkish priest (Hodja)". Apart from persons, it may refer also to cities that were conqered by Turks or churches that were converted to mosques. It is more frequently used in the form of the verb "τουρκεύω" (turkify, become muslim or Turk)
In Serbian and other slavonic languages the verb is poturčiti.
Read more about this topic: Turkification