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giddy

[gid-ee]
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adjective, gid·di·er, gid·di·est.
  1. affected with vertigo; dizzy.
  2. attended with or causing dizziness: a giddy climb.
  3. frivolous and lighthearted; impulsive; flighty: a giddy young person.
verb (used with or without object), gid·died, gid·dy·ing.
  1. to make or become giddy.

Origin of giddy

before 1000; Middle English gidy, Old English gidig mad (as variant of *gydig), derivative of god God, presumably orig. “possessed by a divine being”
Related formsgid·di·ly, adverbgid·di·ness, nounun·gid·dy, adjective

Synonyms

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1. lightheaded, vertiginous. 3. unstable, volatile, fickle, inconstant, vacillating.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for giddily

giddy

adjective -dier or -diest
  1. affected with a reeling sensation and feeling as if about to fall; dizzy
  2. causing or tending to cause vertigo
  3. impulsive; scatterbrained
  4. my giddy aunt an exclamation of surprise
verb -dies, -dying or -died
  1. to make or become giddy
Derived Formsgiddily, adverbgiddiness, noun

Word Origin

Old English gydig mad, frenzied, possessed by God; related to God
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 giddily

adv.

mid-13c., from giddy + -ly (2).

giddy

adj.

Old English gidig, variant of gydig "insane, mad, stupid, possessed (by a spirit)," probably from Proto-Germanic *gud-iga-, from *gudam "god" + *-ig "possessed." Meaning "having a confused, swimming sensation" is from 1560s. Meaning "elated" is from 1540s. Related: Giddily; giddiness.

Online Etymology Dictionary, © 2010 Douglas Harper