κατὰ ῥοῦν
From LSJ
οὗτος ἐγὼ ταχυτᾶτι· χεῖρες δὲ καὶ ἦτορ ἴσο → this is my speed: my hands and heart are its equal, such am I for speed; my hands and heart are just as good
Greek > English (Woodhouse)
down stream, downstream, with the current, with the stream, with the tide
French (Bailly abrégé)
κατὰ ῥόον, κὰρ ῥόον, en suivant le courant ; fig. κατὰ ῥοῦν PLAT sans obstacle, heureusement.
Étymologie: ῥόος, ῥέω.