The name “Hungary” translates as “Land of the Huns.” Another source states that the name is derived from the Turkish words on ogur, meaning “ten arrows''.
Hungary' in Byzantine sources in Medieval Greek, the nation was denominated the "Western Tourkia".Hasdai ibn Shaprut denominated the polity "the land of the Hungrin" ("the land of the Hungarians") in a letter to Joseph of the Khazars of c. 960.
The ethnonym Ungri (on-ogur) is the Latinized form of Byzantine Greek Oungroi. According to an explanation, the Greek name was borrowed from Old Bulgarian ?grinu, which was in turn borrowed from Oghur-Turkic On-Ogur (meaning "ten (tribe of the) Ogurs"), the collective name for the tribes which later joined the Bulgar tribal confederacy that ruled the eastern parts of Hungary after the Avars. The Hungarians probably belonged to the Onogur tribal alliance and it is very possible that they became its ethnic majority.