Origin of damp

1300–50; Middle English (in sense of def. 4); compare Middle Dutch damp, Middle High German dampf vapor, smoke
Related formsdamp·ish, adjectivedamp·ish·ly, adverbdamp·ish·ness, noundamp·ly, adverbdamp·ness, noun
Can be confuseddamp moist (see synonym study at the current entry)damp dampen

Synonyms for damp

Synonym study

1. Damp, humid, moist mean slightly wet. Damp usually implies slight and extraneous wetness, generally undesirable or unpleasant unless the result of intention: a damp cellar; to put a damp cloth on a patient's forehead. Humid is applied to unpleasant dampness in the air: The air is oppressively humid today. Moist denotes something that is slightly wet, naturally or properly: moist ground; moist leather.

Antonyms for damp

1. dry.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for damp off

damp off

verb

(intr, adverb) (of plants, seedlings, shoots, etc) to be affected by damping off

damp

adjective

slightly wet, as from dew, steam, etc
archaic dejected

noun

slight wetness; moisture; humidity
rank air or poisonous gas, esp in a mineSee also firedamp
a discouragement; damper
archaic dejection

verb (tr)

to make slightly wet
(often foll by down) to stifle or deadento damp one's ardour
(often foll by down) to reduce the flow of air to (a fire) to make it burn more slowly or to extinguish it
physics to reduce the amplitude of (an oscillation or wave)
music to muffle (the sound of an instrument)
See also damp off
Derived Formsdampish, adjectivedamply, adverbdampness, noun

Word Origin for damp

C14: from Middle Low German damp steam; related to Old High German demphen to cause to steam
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for damp off

damp

v.

late 14c., "to suffocate," from damp (n.). Figurative meaning "to deaden (the spirits, etc.)" attested by 1540s. Meaning "to moisten" is recorded from 1670s. Related: Damped; damping.

damp

adj.

1580s, "dazed," from damp (n.). Meaning "slightly wet" is from 1706. Related: Dampness.

damp

n.

early 14c., "a noxious vapor," perhaps in Old English but there is no record of it. If not, probably from Middle Low German damp; ultimately in either case from Proto-Germanic *dampaz (cf. Old High German damph, German Dampf "vapor;" Old Norse dampi "dust"). Sense of "moisture, humidity" is first certainly attested 1706.

Online Etymology Dictionary, © 2010 Douglas Harper