Definitions
1.VerbTo relieve the symptoms of; to ameliorate. .mw-parser-output .defdate{font-size:smaller}
2.VerbTo hide or disguise.
3.VerbTo cover or disguise the seriousness of (a mistake, offence etc.) by excuses and apologies.
4.VerbTo lessen the severity of; to extenuate, moderate, qualify.
5.VerbTo placate or mollify.
6.Verbpast participle of palliate (all senses)
7.AdjectiveHidden, concealed.
8.Adjectivesuperficial or temporary.