εὔπρυμνος
From LSJ
ἀπορράπτειν τὸ Φιλίππου στόμα ὁλοσχοίνῳ ἀβρόχῳ → sew up Philip's mouth with an unsoaked rush, stop Philip's mouth with an unsoaked rush, shut one's mouth without any trouble
English (LSJ)
ον,
A with goodly stern or poop, νῆες Il. 4.248, B.12.150, cf. Hp.Ep.14, E.IT1000, 1357; πλάται Id.IA723.
German (Pape)
[Seite 1091] mit schönem Hintertheil, wohlverziertem Spiegel, νῆες Il. 4, 248; Eur. I. T. 1000; πλάται I. A. 723.