συνεκμαχέω
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 march out to fight together, Ar.Lys.1154.
German (Pape)
[Seite 1012] mit, zugleich, zusammen kämpfen, indem man einen Ausfall macht, Ar. Lys. 1154.
Greek (Liddell-Scott)
συνεκμᾰχέω: ἐξέρχομαι ὁμοῦ εἰς μάχην, Ἀριστοφ. Λυσ. 1154.
Russian (Dvoretsky)
συνεκμᾰχέω: вместе идти на вылазку, совместно сражаться Arph.