assuage \uh-SWAYJ\, verb:
1. To make milder or less severe; to reduce the intensity of; to ease; to relieve.
2. To appease; to satisfy.
3. To soothe or calm; to pacify.
His generosity toward a group of young graffiti writers was, perhaps, one way to assuage his guilt.
— Phoebe Hoban, Basquiat: A Quick Killing in Art
If only she would come outside
and let us meet her–face to face;
perhaps our words could turn
her anger’s tide, perhaps
we could, if not erase,
at least assuage her rage.
— Euripides, Medea edited by David R. Slavitt and Palmer Bovie