The verb appease means to prevent further disagreement by giving something that the other side demanded.
Synonyms are pacify, satisfy, soften, or soothe.
The word origins from Anglo-French (13th century) apeser meaning “to reconcile”, from Old French (12th century) apaisier meaning “to pacify, make peace, appease, be reconciled, placate”, from the phrase a paisier meaning “to bring peace. It is derived from a meaning “to” plus pais, from Latin pacem meaning “peace”.
Helping the needy will appease her guilt for his bad deeds.
She tried to appease her mother by giving her favorite citrus.
The song he played can appease the broken hearts.