ἠγῶν

From LSJ

ἀρχαιότερα τῆς διφθέρας λέγεις → you speak things older than the leather scroll

Source

Greek (Liddell-Scott)

ἠγῶν: αἰγῶν, ἤγυς = αἰξί, ἐξ ὀνομαστ. ἤξ, Ἐπιγρ. Ὀρχομενοῦ Βοιωτ., Συλλ. Ἐπιγρ. 1569.