ἴτω
From LSJ
Μεγάλοι δὲ λόγοι μεγάλας πληγὰς τῶν ὑπεραύχων ἀποτίσαντες γήρᾳ τὸ φρονεῖν ἐδίδαξαν → The great words of the arrogant pay the penalty by suffering great blows, and teach one to reason in old age
English (LSJ)
[ῐ], 3sg. imper. from εἶμι (
A ibo); in Trag. almost an exclam., go to! S.Ph.120; well, well! E.Med.798.