Save Gender Masculine Usage Greek Mythology Scripts Πηλεύς(Ancient Greek) Meaning & History Probably derived from Greek πηλός (pelos) meaning "clay". In Greek mythology Peleus was a king of Phthia. With his wife the sea nymph Thetis he was the father of the hero Achilles. Categories Catholic saints, earth, Greek mythology, Ni no Kuni characters, Orthodox saints, saints