palliate
('pal·ee·ayt)
[v.]
1. to make something less intense or severe, mitigate, alleviate; to gloss over, put a positive spin on.
2. to provide relief from pain, relieve the symptoms of a disease or disorder.
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ExampleExample
The governor tried to palliate his malfeasance, but it soon became clear that he would not be able to prevent a scandal.