προσείειν
From LSJ
νῆα μὲν οἵ γε μέλαιναν ἐπ' ἠπείροιο ἔρυσσαν ὑψοῦ ἐπὶ ψαμάθοις, ὑπὸ δ' ἕρματα μακρὰ τάνυσσαν → they pushed the black ship up over the sand onto dry land and placed long beams under her
Greek > English (Woodhouse Verbs Reversed)
(see also προσείω): shake in front of one, wave in front of one
Lexicon Thucydideum
ante agitare (ut facem), to brandish before (as a torch), VI.