προσκαινουργέω
From LSJ
τοῦ δὲ πολέμου οἱ καιροὶ οὐ μενετοί → in war, opportunities won't wait | the chances of war will not wait (Thucydides 1.142.2)
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.