οὐ γὰρ ἂν τό γε πραχθὲν ἀγένητον θείη → since he cannot make what was done as though it had not come to pass
cŏaptātĭo: ōnis, f. coapto,
I an accurate joining together (a word coined by Augustine for translating the Gr. ἁρμονία), Aug. Trin. 4, 2; id. Civ. Dei, 22, 24.