Endeïs was the wife of Aeacus and the mother of Peleus and Telamon. Her name would appear to derive from endo, 'to entangle', presumably meaning 'one who lives at cross purposes', or even 'enemy'. We do know that she hated her step son Phocus (Aeacus' son by Psamathe) and that she and one of her sons killed him and hid the body.