ἐπιβαίνειν
From LSJ
Ὅτ' εὐτυχεῖς, μάλιστα μὴ φρόνει μέγα → Minus insolesce, quo magis res prosperae → Wenn du im Glück bist, brüste dich am wenigsten
Greek > English (Woodhouse Verbs Reversed)
(see also ἐπιβαίνω): climb, scale, board enemy's ship, go on board, set foot on, step upon