experto
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
αἵμων, γνωμονικός, γνώμων, δαήμων, δεινός, δημιουργός, εἰδήμων, ἀγαθός, ἄκρος, ἐμπέραμος, ἐμπειρικός, ἔμπειρος