καταλλάσσεσθαι
From LSJ
ὃ γὰρ βούλεται, τοῦθ' ἕκαστος καὶ οἴεται → what he wishes to be true, each person also believes to be true | what he wishes, each person also believes
Greek > English (Woodhouse Verbs Reversed)
(see also καταλλάσσω): be reconciled to, be reconciled, make it up
Lexicon Thucydideum
in gratiam redire, to become reconciled, 4.59.4, 4.61.2, 6.89.2.