κατείργω · kateirgō — LSJ
drive into, shut in, shut, up, press hard, reduce to straits, besiege, to be hemmed in, kept down, what is done under stress of
drive into, shut in, τοὺς περιγενομένους ἐς τὰς νέας κατεῖρξαν Hdt. 5.63; κατεργνῦσι [αὐτοὺς] ἐς μέσα τὰ φρύγανα shut them up into the middle of the fire-wood, Id. 4.69: generally, press hard, reduce to straits, κατέργοντες πολλὸν τοὺς Ἀθηναίους Id. 6.102; besiege, πτόλιν Inscr.Cypr. l.c.:—Pass., to be hemmed in, kept down, ὑπὸ τοῦ δυνατωτέρου Th. 1.76; ὑπʼ ἀνάγκης D.H. 6.2; ὅρκοις -ειργόμενοι ib. 45; τὸ πολέμῳ καὶ δεινῷ τινι -ειργόμενον what is done under stress of . . , Th. 4.98.
II hinder, prevent, delay, limit
hinder, prevent, τινα E. Med. 1258 (lyr.): c. acc. et inf., κατείργοντας νεκροὺς τάφου . . λαχεῖν Id. Supp. 308: abs., delay, Id. Alc. 256 (lyr.); limit, τὴν φιλαρχίαν Plu. Pomp. 53.