dampening
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Damp·en v. t. [imp. & p. p. dampened p. pr. & vb. n. dampening.]
1. To make damp or moist; to make slightly wet.
2. To depress; to check; to make dull; to lessen.
In a way that considerably dampened our enthusiasm. --The Century.
dampening
n : the act of making something slightly wet [syn: moistening]