coaptatio
From LSJ
ἄνθρωπος ὢν ἥμαρτον· οὐ θαυμαστέον → being human I made a mistake; there is nothing remarkable about it
Latin > English (Lewis & Short)
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.
Latin > French (Gaffiot 2016)
cŏaptātĭō, ōnis, f., ajustement de parties entre elles, harmonie : Aug. Civ. 22, 24.