conciliate
kun-SIL-ee-aytverbMeaning to win over someone who is angry, often by friendly acts
Memory hook CON-SILLY-ate: win him over with something SILLY. Victor is angry about the ball in his garden, so Greta brings him a pie and sings a silly sorry song. His frown melts: she conciliates him.
The hotel conciliated the upset guests with a free night’s stay.
In context Instead of arguing back, the new manager tried to conciliate the angry workers: she listened to every complaint and had the broken heater fixed that same day.
Similar placate, win over, pacify, disarm
Opposite antagonize, alienate, anger
From Latin conciliare, “to bring together, to win over,” from concilium, “a meeting,” the source of council.