προαποδίδωμι
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)
A pay in advance, PTeb.296.13 (ii A.D.). 2 give an account of first, S.E.M.7.46:—Pass., A.D. Adv.195.17. II π. τὴν βάσιν finish the rhythmical conclusion of a sentence before the speaker reaches it, Longin.41.2. III of the bowels, act first, Aët.7.39.
German (Pape)
[Seite 708] vorher wieder- od. zurückgeben; τὴν βάσιν, den vorgeschriebenen Schritt vorher thun, Longin. 41, 2.
Greek (Liddell-Scott)
προαποδίδωμι: ἐκτίθημι προηγουμένως, Σέξτ. Ἐμπ. π. Μ. 7, 46. 2) προαποδίδωμι τὴν βάσιν, τελειώνω τὴν ἀπόδοσιν προτάσεώς τινος πρὸ τοῦ δέοντος, δηλ. ἄνευ τοῦ ἀπαιτουμένου ῥυθμοῦ, Λογγῖν. 41. 2.