θαλύπτω
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 (LSJ)
A = θάλπω, aor. 1 inf. θαλύψαι, Id.; cf. ἀκροθάλυπτος.
Greek (Liddell-Scott)
θαλύπτω: θάλπω, Ἡσύχ. ἐν λέξ. θαλύψαι· ἴδε ἀκροθάλυπτος.