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.
Also, especially British, vigour.
Origin
1300-50;Middle Englishvigo(u)r < Anglo-French;Middle Frenchvigeur < Latinvigor force, energy, equivalent to vig(ēre) to be vigorous, thrive + -or-or1
Related forms
vigorless, adjective
Synonyms
2. drive, force, strength.
Examples from the web for vigor
It stirs the oceans with more vigor, and ever so slowly provides energy to the water world too.
No one questioned his renewed energy and vigor, because he had always been vivacious.
Another type is meant to stimulate root growth, stem vigor, and flower and fruit production.
Mine look a little better than yours but remain stunted with no vine vigor whatsoever.
Yet many colleges remain slow to react to that threat, and have failed to tackle security issues with appropriate vigor.
Manufacturing may ultimately be central to the vigor of a nation's democracy.
There are several less easily described concepts floating around, with equal vigor.
In government laboratories and elsewhere, scientists are seeking a drug able to prolong life and youthful vigor.
Cells that would have formed the outside of the placenta failed to grow and proliferate with their normal vigor, the group found.
And the theory brought renewed vigor to the debate about the benefits of moderate alcohol intake.
British Dictionary definitions for vigor
vigour
/ˈvɪɡə/
noun
1.
exuberant and resilient strength of body or mind; vitality
2.
substantial effective energy or force: the vigour of the tempest
3.
forcefulness; intensity: the vigour of her complaints
4.
the capacity for survival or strong healthy growth in a plant or animal: hybrid 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)
Word Origin
C14: from Old French vigeur, from Latin vigor activity, from vigēre to be lively
Word Origin and History for 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).