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
inf. pf. sync. de θνῄσκω.
τεθνάναι: (ᾰν) inf. pf. к θνῄσκω.
(see also: θνῄσκω) be dead
