Amalek in Fausset's Bible Dictionary
Son of Eliphaz, by his concubine Timnah, of the Horites;
grandson of Esau; duke of Edom (Genesis 36:12; Genesis 36:16).
The Edomites seized the Horite territory. In Hezekiah's reign,
the last remnant of Amalek in Edom was dispersed by the
Simeonites (1 Chronicles 4:42-43).