Assuage

verb
cause to be more favorably inclined; gain the good will of
“She managed to mollify the angry customer”
Similar: pacify, lenify, conciliate, appease, mollify, placate
verb
provide physical relief, as from pain
“This pill will relieve your headaches”
Similar: relieve, alleviate, palliate
verb
satisfy (thirst)
“The cold water quenched his thirst”
Similar: quench, slake, allay