τερσαίνω
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 dry up, αἷμα μέλαν τέρσηνε Il.16.529: pres. in Lyc. 390, Nic.Al.551:—Pass., to be dried up, μυῖαι τερσαίνοντο A.R.4.1405; to be dried, of figs, Jul.Ep.180: cf. τέρσομαι.