duello
From LSJ
ὑμῖν ἔξεστι εὐδαίμοσι γενέσθαι → to you it is permitted to be joyful, it is permitted to be happy, it is permitted to be fortunate, vobis licet esse beatis
duello duellare, duellavi, duellatus V INTRANS :: duel
dŭellō, āre, combattre : Gloss.