Genesis 36:12
Additionally, Timna, a concubine of Esau’s son Eliphaz, gave birth to Amalek. These are the grandsons of Esau’s wife Adah.
Berean Standard Bible
And Timna was concubine to Eliphaz Esau’s son; and she bare to Eliphaz Amalek: these were the sons of Adah Esau’s wife.
Timna was concubine to Eliphaz, Esau’s son; and she bore to Eliphaz Amalek. These are the descendants of Adah, Esau’s wife.