Dweller in a valley, the son of Eliphaz and grandson of Esau
(Gen. 36:12; 1 Chr. 1:36); the chief of an Idumean tribe (Gen. 36:16). His mother was a Horite, a tribe whose territory the
descendants of Esau had seized.
Smith's Dictionary
(dweller in a valley), a son of Eliphaz by his concubine Timnah grandson of Esau, and chieftain (“duke,” Authorized Version) of Edom. (Genesis 36:12,16; 1 Chronicles 1:36) (B.C. about 1700.)