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
impĕrītē: (inp-), adv., v. imperitus.
impĕrītē¹³ (imperitus), sans s’y connaître, maladroitement : Cic. Br. 175 ; Phil. 2, 81 ; -tius Cic. Balbo 20 ; -issime Cic. Balbo 27.