DAMPENED

Verb

dampened

simple past tense and past participle of dampen

Source: Wiktionary

DAMPEN

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.

Damp"en, v. i.

Definition: To become damp; to deaden. Byron.

Source: Webster’s Unabridged Dictionary 1913 Edition