ἀνδραγάθημα
From LSJ
εἰ γάρ κεν καὶ σμικρὸν ἐπὶ σμικρῷ καταθεῖο καὶ θαμὰ τοῦτ᾽ ἔρδοις, τάχα κεν μέγα καὶ τὸ γένοιτο → for if you add only a little to a little and do this often, soon that little will become great (Hesiod W&D, 361-362)
English (LSJ)
ατος, τό,
A brave, manly deed, Str.1.2.8, Plu.Sert.10,IG14.951,Jul.Caes.329c, etc.
