ATREUS Meaning of ATREUS in English /ay"tree euhs, ay"tryoohs/ , n. Class. Myth.the father of Plisthenes, Agamemnon, Menelaus, and Anaxibia upon whose house Thyestes pronounced a curse. Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012