κιδαφεύω
From LSJ
ἵνα οὖν μηδ' ἐν τούτῳ δῷ αὐτοῖς λαβήν (Photius, Fragments on the Epistle to the Romans 483.26) → so that he doesn't give them even here a handle (= an opportunity for refutation)
German (Pape)
[Seite 1437] schlau, listig sein, handeln, Hesych. erkl. πανουργεύεσθαι. Von
