Amalek in Smiths Bible Dictionary

(dweller in a valley), a son of Eliphaz by his concubine Timnah grandson of Esau, and chieftain ("duke," Authorized Version) of Edom. Ge 36:12,16; 1Ch 1:36 (B.C. about 1700.)

Link: https://bible-history.com/smiths/A/Amalek/