ejercitar
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
Spanish > Greek
ἐκπονέω, ἐνασκέω, ἐγγυμνάζω, ἀπογυμνάζω, διαπονέω, διαγυμνάζω, διαμελετάω, ἀσκέω, γυμνάζω, ἐμμελετάω, ἐξασκέω