placate

To allay the anger of, especially by making concessions; appease. synonym: pacify.

To appease or pacify; conciliate.

To appease; to pacify; to concilate.

Same as placard, 4 & 5.

To calm; to bring peace to; to influence someone who was furious to the point that he or she becomes content or at least no longer irate.

cause to be more favorably inclined; gain the good will of