Adah meaning: an assembly
Ge 4:19 ¶ And Lamech took unto him two wives: the name of the one was Adah, and the name of the other Zillah.
Ge 4:20 And Adah bare Jabal: he was the father of such as dwell in tents, and of such as have cattle.
Ge 4:23 ¶ And Lamech said unto his wives, Adah and Zillah, Hear my voice; ye wives of Lamech, hearken unto my speech: for I have slain a man to my wounding, and a young man to my hurt. {I have…: or, I would slay a man in my wound, etc.} {to my hurt: or, in my hurt}
Ge 36:2 Esau took his wives of the daughters of Canaan; Adah the daughter of Elon the Hittite, and Aholibamah the daughter of Anah the daughter of Zibeon the Hivite;
Ge 36:4 And Adah bare to Esau Eliphaz; and Bashemath bare Reuel;
Ge 36:10 These are the names of Esau’s sons; Eliphaz the son of Adah the wife of Esau, Reuel the son of Bashemath the wife of Esau.
Ge 36:12 And Timna was concubine to Eliphaz Esau’s son; and she bare to Eliphaz Amalek: these were the sons of Adah Esau’s wife.
Ge 36:16 Duke Korah, duke Gatam, and duke Amalek: these are the dukes that came of Eliphaz in the land of Edom; these were the sons of Adah.
(KJV)