Ahinoam

Brother of pleasantness = pleasant. (1.) The daughter of "Ahimaaz, and wife of Saul (1 Sam. 14:50)." "(2.) A Jezreelitess, the first wife of David (1 Sam. 25:43; 27:3). She was the mother of Amnon (2 Sam. 3:2). (See 1 Sam. "30:5, 18; 2 Sam. 2:2.)"

Definition of Ahinoam:
"beauty of the brother; brother of motion"