ἐχέμεν

From LSJ

ὅπλον μέγιστόν ἐστιν ἡ ἀρετή βροτοῖς → man's greatest weapon is virtue, virtue is the greatest weapon for mortals

Source

French (Bailly abrégé)

inf. prés. épq. de ἔχω.

Russian (Dvoretsky)

ἐχέμεν: эп. (= ἔχειν) inf. к ἔχω.