noun

1. a slight wetness; moisture
2. a harmful gas sometimes found in mines; firedamp; blackdamp
3. Archaic a dejected or depressed state

Etymology: MDu, vapor, steam, akin to OHG, MHG, Ger dampf < IE base *dhem-, to smoke, mist > dank

adjective

1. somewhat moist or wet; humid
2. dejected; depressed

transitive verb

1. to make damp; moisten
2. to slow the combustion of (a fire) by cutting off most of the air supply; bank: usually with down
3. to check or reduce (energy or action)
4. to check or deaden the vibration of (a piano string, drum membrane, etc.)
5. to reduce the amplitude of (oscillations, waves, etc.)