ἀποκόπτεσθαι Search Google

From LSJ

ἔοικα γοῦν τούτου γε σμικρῷ τινι αὐτῷ τούτῳ σοφώτερος εἶναι, ὅτι ἃ μὴ οἶδα οὐδὲ οἴομαι εἰδέναι → I seem, then, in just this little thing to be wiser than this man at any rate, that what I do not know I do not think I know either

Source

Greek > English (Woodhouse Verbs Reversed)

(see also ἀποκόπτω): beat the breast, mourn for one dead