mist

[mist]
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noun

verb (used without object)

to become misty.
to rain in very fine drops; drizzle (usually used impersonally with it as subject): It was misting when they went out for lunch.

verb (used with object)

to make misty.
to spray (plants) with a finely diffused jet of water, as a means of replacing lost moisture.

Origin of mist

before 900; (noun) Middle English, Old English; cognate with Dutch, Low German, Swedish mist; akin to Greek omíchlē fog, Russian mgla mist, Sanskrit megha cloud; (v.) Middle English misten, Old English mistian, derivative of the noun
Related formsmist·less, adjectivede·mist, verb (used with object)un·der·mist, noun
Can be confusedmidst missed mist

Synonyms for mist

3, 4. See cloud.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for demist

demist

verb

to free or become free of condensation through evaporation produced by a heater and/or blower

mist

noun

a thin fog resulting from condensation in the air near the earth's surface
meteorol such an atmospheric condition with a horizontal visibility of 1–2 kilometres
a fine spray of any liquid, such as that produced by an aerosol container
chem a colloidal suspension of a liquid in a gas
condensed water vapour on a surface that blurs the surface
something that causes haziness or lack of clarity, such as a film of tears

verb

to cover or be covered with or as if with mist

Word Origin for mist

Old English; related to Middle Dutch, Swedish mist, Greek omikhlē fog
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 demist

mist

n.

Old English mist "dimness (of eyesight), mist" (earliest in compounds, such as misthleoðu "misty cliffs," wælmist "mist of death"), from Proto-Germanic *mikhstaz (cf. Middle Low German mist, Dutch mist, Icelandic mistur, Norwegian and Swedish mist), perhaps from PIE *meigh- "to urinate" (cf. Greek omikhle, Old Church Slavonic migla, Sanskrit mih, megha "cloud, mist;" see micturition).

Sometimes distinguished from fog, either as being less opaque or as consisting of drops large enough to have a perceptible downward motion. [OED]

Also in Old English in sense of "dimness of the eyes, either by illness or tears," and in figurative sense of "things that obscure mental vision."

mist

v.

Old English mistian "to become misty, to be or grow misty;" see mist (n.). Meaning "To cover with mist" is early 15c. Related: Misted; misting.

Online Etymology Dictionary, © 2010 Douglas Harper

demist in Science

mist

[mĭst]

A mass of fine droplets of water in the atmosphere near or in contact with the Earth. Mist reduces visibility to not less than 1 km (0.62 mi). Compare fog.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.