It is a verb.
Meaning : pacify.It means to allay anger off, by making concessions etc.It means calming down the temper by satisfying the other party i.e. tranquilizing.
Root of the word : plac/pac/peac which means please, calm, peace
Etymology: Latin word placatus which means to appease i.e. to please
Synonyms : calm down, conciliate, mollify, soothe, appease, assuage,dulcify,sweeten,soft pedal,tranquilize,quiten
Antonyms : enrage,provoke
placater - noun
placation - noun
placative - adjective
placatory - adjective
1)The husband tried to placate his angry wife with a bouquet.
2)There is urgency to placate the people who are outraged against the government.
3)Its difficult to placate my angry mom when she is not pleased with me.
4)Hope things get placated with the arrival of the new MD.