ap·pease 
(ə-pēz)
(ə-pēz)tr.v. ap·peased, ap·peas·ing, ap·peas·es
1.
a. To placate or attempt to placate (a threatening nation, for example) by granting concessions, often at the expense of principle.
b. To calm, soothe, or quiet (someone): appeased the baby with a pacifier. See Synonyms at pacify.
2. To satisfy, relieve, or assuage: appease one's thirst.
[Middle English appesen, from Old French apesier : a-, to (from Latin ad-; see AD-) + pais, peace (from Latin pāx; see pag- in the Appendix of Indo-European roots).]
ap·peasa·ble adj.
ap·peasa·bly adv.
ap·peaser n.