συγκεντέω
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 pierce together, stab at once, Hdt.3.77, Plb.4.22.11, LXX 2 Ma.12.23:—Pass., ἔμελλε συγκεντηθήσεσθαι Hdt.6.29; cf. συνακοντίζω.