“Endeavored” or “Endeavoured”—What's the difference?

Usage by country

Where each spelling is used

Of the 12 countries below, 2 prefer “endeavored” and 6 prefer “endeavoured”. Usage levels are out of 100; the more common spelling in each country is in bold.

Usage level out of 100 (if available).
Country	endeavored	endeavoured	Preference
United States	71	29	“endeavored”
United Kingdom	13	87	“endeavoured”
India	19	81	“endeavoured”
Philippines	100	0	“endeavored”
Canada	42	58	“endeavoured”
Australia	14	86	“endeavoured”
Liberia	0	0	Not enough data
Ireland	0	100	“endeavoured”
New Zealand	0	100	“endeavoured”
Jamaica	0	0	Not enough data
Trinidad & Tobago	0	0	Not enough data
Guyana	0	0	Not enough data

Usage

Examples in context

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

“endeavored”

…art ever since the artist endeavored to mimic perfect reality instead…
…Fu secrets, which they then endeavored to sell to the highest
…complaints of his fellow-citizens but endeavored to excite the emperor's anger…
…returning to Germany, Franz Ludwig endeavored to emigrate to Van Diemen's…
Mailer endeavored to produce not an anthology,…
…results of a survey that endeavored to study the relevance and…
…the battle damage, the yard endeavored to improve her antiaircraft armament.
…still populating Europe this scientists endeavored to further study the morphology…
…as proof of his legitimacy), endeavored to show that the book…
…faith in God's kingdom have endeavored to get all people to…

“endeavoured”

Nicholas preached a crusade and endeavoured to reconcile the mutual animosities…
He endeavoured to keep this constant.
In July 1147 Roger endeavoured to join the Second Crusade…
…Magazine said that Carter had "endeavoured to avoid the flimsy effect…
…with their creation - they endeavoured to make their following projects…
Hugues Lebailly has endeavoured to set Dodgson's child photography…
…whereupon the railway men had endeavoured the most.
…to battleships (戦艦 Senkan) and endeavoured to build the largest and…
…New York City, they also endeavoured to include all of the…
…Kernowek Dasunys (Cornish Re-unified) which endeavoured to reconcile UC, KK, RLC,…

Examples are Wikipedia snippets under the CC ShareAlike 3.0 license.

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