The Hungarians' own ethnonym to denote themselves in the Early Middle Ages is uncertain. The exonym Hungarian is thought to be derived from Oghur-Turkic On-Ogur (literally Ten Arrows or Ten Tribes). Another possible explanation comes from the Old Russian Yugra (Югра). It may refer to the Hungarians during a time when they dwelt east of the Ural Mountains along the natural borders of Europe and Asia before their conquest of the Carpathian Basin.