μονομαχεῖν
From LSJ
τῶν γὰρ μετρίων πρῶτα μὲν εἰπεῖν τοὔνομα νικᾷ → the first mention of the word moderation wins the game (Euripides, Medea 125f.)
Greek > English (Woodhouse Verbs Reversed)
(see also μονομαχέω): engage in single combat with, engage in single combat, fight a duel, fight man to man