Difference between Dampen and Damp

DAMPEN vs DAMP: NOUN

Fog; fogginess; vapor.
Moisture; humidity; dampness.
The popular name of a disease which attacks young seedlings and succulent plants, causing them to rot off near the surface of the ground.
A slight wetness
Moisture; humidity; fog; fogginess; vapor.
Dejection; depression; cloud of the mind.
A gaseous product, formed in coal mines, old wells, pints, etc.
A damp consisting principally of carbonic acid gas; -- so called from its extinguishing flame and animal life. See Carbonic acid, under Carbonic.
Moisture in the air; humidity.
Foul or poisonous gas that sometimes pollutes the air in coal mines.
Lowness of spirits; depression.
A restraint or check; a discouragement.
A curtain in a mine gallery to direct air currents and prevent accumulation of gas.
A damp consisting chiefly of light carbureted hydrogen; -- so called from its tendence to explode when mixed with atmospheric air and brought into contact with flame.
Depression of spirits; dejection.
A check; a discouragement.
Moist air; humidity; moisture.
A poisonous vapor; specifically, in mining, a stifling or poisonous gas. See black-damp, fire-damp.
A fog.
Moisture that lies or has condensed on something.

To put out, as fire; to depress or deject; to deaden; to cloud; to check or restrain, as action or vigor; to make dull; to weaken; to discourage.
To render damp; to moisten; to make humid, or moderately wet; to dampen.

To make damp or moist; moisten.
To suppress or extinguish (a fire) by reducing or cutting off air.
To slow or stop the vibrations of (the strings of a keyboard instrument) with a damper.
To decrease the amplitude of (an oscillating system).
To restrain or check; discourage.

Check
Keep in check (a fire)
To put a check or damper upon; make weak or dull; dim; deaden. See damp.
To make damp or humid; apply moisture to; wet slightly; damp: as, the grass was dampened by a slight shower; to dampen clothes for ironing.
Suppress or constrain so as to lessen in intensity

Clammy.
Synonyms Humid, Dank, etc. See moist.
To moisten; make humid or moderately wet; dampen.
To extinguish; smother; suffocate.
To suffocate with damp or foul air in a mine. [Eng.]
To check or retard the force or action of: as, to damp a fire by covering it with ashes; especially, to diminish the range or amplitude of vibrations in, as a piano-string, by causing a resistance to the motions of the vibrating body.
To make dull or weak and indistinct, as a sound or a light; obscure; deaden.
To depress; deject; discourage; deaden; check; weaken.
Specifically To diminish or destroy the oscillation of (a metallic body in motion in a magnetic field).
[Dampen is now more common in the literal sense, and is sometimes used in the derived senses.]
Synonyms To moderate, allay, dispirit.
In horticulture, to rot or waste away, as the stems and leaves of seedlings and other tender plants, when the soil and atmosphere in which they are vegetating are too wet or cold: with off: as, flower-seedlings in hotbeds are especially liable to damp off.
Moist; humid; moderately wet: as, a damp cloth; damp air.

Diminish, Hinder, Hamper, Tone down, Mute, Wash, Moisten, Dull, Break, Deaden, Muffle, Damp, Soften, Weaken, Stifle

Dank, Muggy, Humid, Tone down, Mute, Break, Weaken, Muffle, Soften, Moistness, Deaden, Dampen, Dull, Moist, Wet

Diminish, Hinder, Hamper, Tone down, Mute, Wash, Moisten, Dull, Break, Deaden, Muffle, Damp, Soften, Weaken, Stifle

Humidity, Dank, Muggy, Humid, Tone down, Mute, Break, Weaken, Muffle, Soften, Deaden, Dampen, Dull, Moist, Wet

Wipe the window clean with a damp cloth.
Can I dye my wet or damp hair?
Clean by wiping with a soft damp cloth.
Are There Any Problems with Damp or Mold?
The damp wood had swollen in its frame.
Damp proof membrane A damp proof membrane is required for all floors of habitable buildings to prevent moisture rising from the ground below.
Damage: These crickets live in cool dark and damp habitats like caves, plumbing, under rocks, damp basements and inside privies.
If you notice damp in the floor or lower portion of the walls, it is likely rising damp.
Any damp smells can be an indication of water leaks or even rising damp.
How to Clean: Apply with a damp sponge or damp cloth.