περιρρεῖν

From LSJ

οἵ γε καὶ ἐν τῷ παρόντι ἀντιπάλως μᾶλλον ἢ ὑποδεεστέρως τῷ ναυτικῷ ἀνθώρμουν → whose navy, even as it was, faced the Athenian more as an equal than as an inferior

Source

Greek > English (Woodhouse Verbs Reversed)

(see also περιρρέω): crowd round, drop off, fall off, flock around, flow round, slip off, throng round

Lexicon Thucydideum

circumfluere, to flow around, 4.102.4 (de Amphipoli concerning Amphipolis),
defluere, decidere, to flow down, fall down, 4.12.1.