Same word as palliate:

abate, allay, alleviate, apologize for, assuage, camouflage, cloak, conceal, condone, cover, diminish, disguise, dissemble, ease, exculpate, excuse, extenuate, gloze, hide, hush up, justify, lessen, lighten, make light of, mask, minimize, mitigate, moderate, mollify, prettify, put on a Band-Aid, qualify, quick fix, relieve, screen, soften, soothe, sugarcoat, temper, varnish, veil, veneer, vindicate, white, whiten, whitewash