προσκαινουργέω
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)
English (LSJ)
A work some new thing, πολλά J.AJ17.11.2.
Greek (Liddell-Scott)
προσκαινουργέω: ἐργάζομαι νέον τι κακόν, Ἰωσήπ. Ἰουδ. Ἀρχ. 17. 11, 2.