“Vigor” or “Vigour”—What's the difference?

Usage by country

Where each spelling is used

Of the 12 countries below, 9 prefer “vigor” and 1 prefer “vigour”. Usage levels are out of 100; the more common spelling in each country is in bold.

Usage level out of 100 (if available).
Country	vigor	vigour	Preference
United States	97	3	“vigor”
United Kingdom	70	30	“vigor”
India	38	62	“vigour”
Philippines	94	6	“vigor”
Canada	89	11	“vigor”
Australia	72	28	“vigor”
Liberia	0	0	Not enough data
Ireland	54	46	“vigor”
New Zealand	70	30	“vigor”
Jamaica	55	45	“vigor”
Trinidad & Tobago	83	17	“vigor”
Guyana	0	0	Not enough data

Usage

Real sentences for each spelling. Hover an example to copy it.

The suffrage movement declined in vigor during the years immediately after…
…with animals and plants, hybrid vigor or heterosis, conceptions as to…
With renewed vigor, the Democrats reaffirmed their dedication…
…produce uniform offspring with hybrid vigor; cultivars which are F-11 or…
Hybrid vigor - hybrids tend to be…
…specially pronounced in the dance-like vigor of the main melody and…
…like increased healing abilities, increased vigor, or changing the person's gender;…
…more features with the Acura Vigor under a 'wide-body' marketing campaign…
…campaign was prosecuted with great vigor, and by the 12th of…
…capitulated, compromised, or continued with vigor, attorney McKelvey eventually countered, supplanting…

…soporific effect, but the intoxicating vigour of Madhusudan's poems makes even…
…with sensitiveness as much as vigour.
…"beams with joyousness and youthful vigour."
…to maintain full health and vigour.
…had a certain amount of vigour and originality.
…its ease of germination and vigour, it has spread from the…
…faithful reproductions, however, lack the vigour and artistic sensitivity of blocks…
France came out with renewed vigour after the break and a…
From the vigour of the great female singers,…
…the Brahma Sabha, fallen in vigour and following since the death…

Examples are Wikipedia snippets under the CC ShareAlike 3.0 license.

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