moisture or humidityarchaic (in pl) moist airarchaic discouragement [early Dutch or German damp vapour]
to make dampen (something)(often + down) to restrain or control (an activity, condition, etc)(often + down) to reduce the air supply to (a fire) so that it becomes less intensein physics, to decrease the amplitude of (an oscillation or wave) progressivelyin music, to decrease the vibration of (the strings of an instrument)