ἄκατος
From LSJ
ποταμῷ γὰρ οὐκ ἔστιν ἐμβῆναι δὶς τῷ αὐτῷ → it is impossible to step twice in the same river, you cannot step twice into the same rivers
English (LSJ)
[ᾰκ], ἡ (rarely ὁ, as Hdt.7.186):—
A light vessel, boat, Thgn. 458, Pi.P.11.40, Hdt. l.c., Th.7.25, etc.; used in the mysteries, IG 1.225c:—generally, ship, E.Hec.446, Or.342. II boat-shaped cup, Theopomp. Com.3 (= Telest.6), Antiph.4.
