[fog, fawg]


verb (used with object), fogged, fog·ging.

verb (used without object), fogged, fog·ging.

to become enveloped or obscured with or as if with fog.
Photography. (of a negative or positive) to become affected by fog.

Origin of fog

1535–45; perhaps by back formation from foggy. See fog2
Related formsfog·less, adjectiveun·fogged, adjectiveun·fog·ging, adjective

Synonyms for fog

3. obfuscation. See cloud. 7. becloud, obfuscate, dim, blur, darken. 8. daze, befuddle, muddle, mystify.

Antonyms for fog

3. clarity. 7. clarify. 10. clear. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for fogged

Contemporary Examples of fogged

Historical Examples of fogged

  • Perhaps the tape was fuzzy or it may have been fogged in transit by radiation.

    Mezzerow Loves Company

    Floyd L. Wallace

  • Before you did this, you fogged your mind with all sorts of fantastic ideas.

    Double Harness

    Anthony Hope

  • He wiped the blood from his eyes, but his vision was fogged.

  • He could only think of it now with a bitterness that fogged his judgment.

    Old Mole

    Gilbert Cannan

  • If your home field was fogged in you were directed to another field.

British Dictionary definitions for fogged




photog affected or obscured by fog




a mass of droplets of condensed water vapour suspended in the air, often greatly reducing visibility, corresponding to a cloud but at a lower level
a cloud of any substance in the atmosphere reducing visibility
a state of mental uncertainty or obscurity
photog a blurred or discoloured area on a developed negative, print, or transparency caused by the action of extraneous light, incorrect development, etc
a colloid or suspension consisting of liquid particles dispersed in a gas

verb fogs, fogging or fogged

to envelop or become enveloped with or as if with fog
to confuse or become confusedto fog an issue
photog to produce fog on (a negative, print, or transparency) or (of a negative, print, or transparency) to be affected by fog

Word Origin for fog

C16: perhaps back formation from foggy damp, boggy, from fog ²




  1. a second growth of grass after the first mowing
  2. grass left to grow long in winter

Word Origin for fog

C14: probably of Scandinavian origin; compare Norwegian fogg rank grass
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 fogged



"thick, obscuring mist," 1540s, probably from a Scandinavian source akin to Danish fog "spray, shower, snowdrift," Old Norse fok "snow flurry," fjuk "snow storm." Cf. also Old English fuht, Dutch vocht, German Feucht "moist." Figurative phrase in a fog "at a loss what to do" first recorded c.1600.



"long grass," c.1300, probably of Scandinavian origin, cf. Norwegian fogg "long grass in a moist hollow," Icelandic fuki "rotten sea grass." The connection to fog (n.1), via a notion of long grass growing in moist dells of northern Europe, is tempting but not proven. Watkins suggests derivation from PIE *pu- "to rot, decay."



1590s, from fog (n.1). Related: Fogged; fogging.

Online Etymology Dictionary, © 2010 Douglas Harper

fogged in Science



A dense layer of cloud lying close to the surface of the ground or water and reducing visibility to less than 1 km (0.62 mi). Fog occurs when the air temperature becomes identical, or nearly identical, to the dew point.
An opaque or semiopaque condensation of a substance floating in a region or forming on a surface.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with fogged


see in a fog.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.