Zethos — a son of Zeus and Antiope, at Thebes, and a brother of Amphion
Ancient Greek word, found 29 times in the texts on Socratos.
Homer, Odyssey 11.262: καί ῥʼ ἔτεκεν δύο παῖδʼ, Ἀμφίονά τε Ζῆθόν τε,
Apollonius Rhodius, Argonautica 1.736: Ἀμφίων καὶ Ζῆθος· ἀπύργωτος δʼ ἔτι Θήβη
Euripides, Heracles 30: Ἀμφίονʼ ἠδὲ Ζῆθον, ἐκγόνω Διός.