οὐ γὰρ ἂν τό γε πραχθὲν ἀγένητον θείη → since he cannot make what was done as though it had not come to pass
the morrow: P. and V., ἡ αὔριον, ἡ αὔριον ἡμέρα, V. ἡ ἐς αὔριον ἡμέρα.
to-morrow, adv.: P. and V. αὔριον.