Etymology
Advertisement

muggy (adj.)

"damp and close, warm and humid," 1746, with -y (2) + obsolete mug "a fog, mist," from Middle English mugen "to drizzle" (of a fog or a mist, late 14c.), from a Scandinavian source such as Old Norse mugga "drizzling mist," which is possibly from PIE *meug- "slimy, slippery" (see mucus).

updated on March 19, 2019

Advertisement
Advertisement
Definitions of muggy from WordNet

muggy (adj.)
hot or warm and humid;
muggy weather
Synonyms: steamy / sticky
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.