οὐ γὰρ ἂν τό γε πραχθὲν ἀγένητον θείη → since he cannot make what was done as though it had not come to pass
αδρός1. γίνομαι τραχύς, σκληραίνομαι, σκληραίνω2. γίνομαι ξινός, ξινίζω.