Mitigate

Webster's Dictionary of the English Language

·vt To make mild and accessible; to Mollify;

— applied to persons.

II. Mitigate ·vt To make less severe, intense, harsh, rigorous, painful, ·etc.; to Soften; to Meliorate; to Alleviate; to Diminish; to Lessen; as, to mitigate heat or cold; to mitigate grief.