Hagarenes (Greek Ἀγαρηνοί), is a term that describes "the followers or descendants of Hagar". The name was used in Judeo-Christian literature and Byzantine chronicles for Hanif Arabs, then for Islamic forces known collectively as Saracens, and during the height of the Ottoman Empire, for Turks. The name, used interchangeably with Ishmaelites, came also to mean any Muslim. An example of its current usage is Ahryani (Aхряни), a name used for Bulgarian Muslims in colloquial Bulgarian - although this term has also been explained as paralleling the spread of Balkan Islam with anti-trinitarian Arianism.