πλατόω
From LSJ
Οὗτος Ἰουστῖνον καὶ Νεοβιγάστην στρατηγοὺς προβαλόμενος, καὶ τὰς Βρεττανίας ἐάσας, περαιοῦται ἅμα τῶν αὐτοῦ ἐπὶ Βονωνίαν → He appointed Justinus and Neovigastes as generals, and leaving Britain, crossed with his forces to Bononia.(Olympiodorus/Photius)
German (Pape)
[Seite 627] platt, breit machen, wie das Holz zum breiten Unterende des Ruders, πλατούμενοι κωπέες, Ar. Ach. 526.