στῆσαι

From LSJ

αἰὲν ἀριστεύειν καὶ ὑπείροχον ἔμμεναι ἄλλων → always strive for excellence and prevail over others (Iliad 6.208, 11.784)

Source

French (Bailly abrégé)

inf. ao. Act. de ἵστημι.

Russian (Dvoretsky)

στῆσαι: inf. aor. 1 к ἵστημι.