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vigor

[vig-er]
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noun
  1. active strength or force.
  2. healthy physical or mental energy or power; vitality.
  3. energetic activity; energy; intensity: The economic recovery has given the country a new vigor.
  4. force of healthy growth in any living matter or organism, as a plant.
  5. active or effective force, especially legal validity.
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Also especially British, vig·our.

Origin of vigor

1300–50; Middle English vigo(u)r < Anglo-French; Middle French vigeur < Latin vigor force, energy, equivalent to vig(ēre) to be vigorous, thrive + -or -or1
Related formsvig·or·less, adjective

Synonyms

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2. drive, force, strength.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for vigour

vigour

US vigor

noun
  1. exuberant and resilient strength of body or mind; vitality
  2. substantial effective energy or forcethe vigour of the tempest
  3. forcefulness; intensitythe vigour of her complaints
  4. the capacity for survival or strong healthy growth in a plant or animalhybrid vigour
  5. the most active period or stage of life, manhood, etc; prime
  6. mainly US legal force or effectiveness; validity (esp in the phrase in vigour)
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Word Origin

C14: from Old French vigeur, from Latin vigor activity, from vigēre to be lively
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 vigour

n.

chiefly British English spelling of vigor (q.v.); for spelling, see -or.

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vigor

n.

c.1300, from Anglo-French vigour, Old French vigor, from Latin vigorem (nominative vigor) "liveliness, activity, force," from vigere "be lively, flourish, thrive," from PIE *wog-/*weg- "be lively or active" (see vigil).

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Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with vigour

vigor

see vim and vigor.

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