Deuteronomy 2:10 (KJV)

And when we passed by from our brethren the children of Esau, which dwelt in Seir, through the way of the plain from Elath, and from Ezion–gaber, we turned and passed by the way of the wilderness of Moab.

And the Lord said unto me, Distress not the Moabites, neither contend with them in battle: for I will not give thee of their land for a possession; because I have given Ar unto the children of Lot for a possession.

The Emims dwelt therein in times past, a people great, and many, and tall, as the Anakims;

Which also were accounted giants, as the Anakims; but the Moabites call them Emims.

The Horims also dwelt in Seir beforetime; but the children of Esau succeeded them, when they had destroyed them from before them, and dwelt in their stead; as Israel did unto the land of his possession, which the Lord gave unto them.