Διδύμων

From LSJ

μηδενί δίκην δικάσῃς πρίν ἀμφοῖν μῦθον ἀκούσῃς → do not give your judgement on anything until you have heard a speech on both sides

Source

Spanish (DGE)

-ωνος, ὁ Didimón flautista, D.L.6.51, 68.