AMALEK

Son of Eliphaz
And Timna was concubine to Eliphaz Esau's son; and she bare to Eliphaz Amalek: these were the sons of Adah Esau's wife. (Genesis 36:1212And Timna was concubine to Eliphaz Esau's son; and she bare to Eliphaz Amalek: these were the sons of Adah Esau's wife. (Genesis 36:12))
The sons of Eliphaz; Teman, and Omar, Zephi, and Gatam, Kenaz, and Timna, and Amalek. (1 Chronicles 1:3636The sons of Eliphaz; Teman, and Omar, Zephi, and Gatam, Kenaz, and Timna, and Amalek. (1 Chronicles 1:36))
Probably not the ancestor of the Amalekites mentioned in time of Abraham
And they returned, and came to En-mishpat, which is Kadesh, and smote all the country of the Amalekites, and also the Amorites, that dwelt in Hazezon-tamar. (Genesis 14:77And they returned, and came to En-mishpat, which is Kadesh, and smote all the country of the Amalekites, and also the Amorites, that dwelt in Hazezon-tamar. (Genesis 14:7))