inveteratio
From LSJ
οὐ γὰρ ἂν τό γε πραχθὲν ἀγένητον θείη → since he cannot make what was done as though it had not come to pass
Latin > English (Lewis & Short)
invĕtĕrātĭo: ōnis, f. invetero,
I inveterateness; hence, an inveterate disease, Cic. Tusc. 4, 37, 81.
Latin > French (Gaffiot 2016)
invĕtĕrātĭō, ōnis, f. (invetero), maladie invétérée : Cic. Tusc. 4, 81.