A / ădūnātĭo
noun

ădūnātĭo

gen. ădūnātōnis · gender feminine · decl. 3rd
(like the verb aduno, only in later authors)
a making into one; a uniting; a union
a making into one, a uniting, a union, ἕνωσις, Cyp. Ep. 57 (60 Oxon.), 61 (62 ib.); Cassiod. Ep. 4, 33 and 36.