τραπῶ

From LSJ

σὺν μυρίοισι τὰ καλὰ γίγνεται πόνοις → good things come with many pains | no pain, no gain

Source

French (Bailly abrégé)

sbj. ao.2 Pass. de τρέπω.

Russian (Dvoretsky)

τρᾰπῶ: aor. 2 conjct. pass. к τρέπω.