Deuteronomy 3:13-14

and the rest of Gilead, and all Bashan, the kingdom of Og, gave I unto the half-tribe of Manasseh; all the region of Argob, even all Bashan. (The same is called the land of Rephaim. Jair the son of Manasseh took all the region of Argob, unto the border of the Geshurites and the Maacathites, and called them, even Bashan, after his own name, Havvoth-jair, unto this day.)