bravely
From LSJ
Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη. Τὸ δὲ ἡττᾶσθαι αὐτὸν ὑφ' ἑαυτοῦ πάντων αἴσχιστόν τε ἅμα καὶ κάκιστον. → Τo conquer yourself is the first and best victory of all, while to be conquered by yourself is of all the most shameful as well as evil
English > Greek (Woodhouse)
adv.
P. and V. ἀνδρείως, Ar. and P. θρασέως, P. τολμηρῶς, θαρσαλέως, V. θρασυσπλάγχνως, εὐθαρσῶς, εὐτόλμως, εὐκαρδίως; see also fearlessly.
Splendidly: P. and V. λαμπρῶς, σεμνῶς.