κατειρωνεύομαι · kateirōneuomai — LSJ
use irony towards, banter, τινας Plu. Apophth. Lac. 2.211d, cf. Cat.Ma. 11; τινος J. BJ 7.8.1, al., Jul. Or. 6.198b; τῆς ἀγνοίας J. BJ 4.3.1: abs., -όμενος jestingly, Parth. 7.2, cf. Plu. Agis 18.
treat in a spirit of raillery, τι Id. Comp.Dem.Cic. 1.
feign, πένθος J. BJ 2.2.5.
conceal, dissimulate, τὴν ἐξουσίαν, τὸν χρησμόν, Plu. Phoc. 29, Comp.Ages.Pomp. 1; ὑπόσχεσιν Aristaenet. 1.4.