adunatio
From LSJ
μηδέ μοι ἄκλαυστος θάνατος μόλοι, ἀλλὰ φίλοισι καλλείποιμι θανὼν ἄλγεα καὶ στοναχάς → may death not come to me without tears, but when I die may I leave my friends with sorrow and lamentation
Latin > English (Lewis & Short)
ădūnātĭo: ōnis, f. (like the verb aduno, only in later authors),
I a making into one, a uniting, a union, ἕνωσις, Cyp. Ep. 57 (60 Oxon.), 61 (62 ib.); Cassiod. Ep. 4, 33 and 36.
Latin > French (Gaffiot 2016)
ădūnātĭō, ōnis, f. (aduno), assemblage, réunion : Tert. Pud. 5