- a variation of endeavor.
endeavour
Britishverb
noun
Other Word Forms
Etymology
Origin of endeavour
C14: endeveren , from en- 1 + -deveren from dever duty, from Old French deveir; see devoirs
Explanation
To endeavour is to strive for something. The endeavour itself is the thing you're striving for, the enterprise or undertaking. It's a primarily British spelling of the word. The Middle English root of endeavour means to "put oneself in" or "do one's utmost," so if you endeavour to do something, you do it with earnestness and a fair amount of effort. Americans usually spell the word endeavor, but NASA named one of its space shuttles the Endeavour. Why the extra "u"? NASA was honoring the HMS Endeavour, the first ship ever used by the British explorer Captain James Cook.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Scientists are also trying to fight disease, though that's an expensive and laborious endeavour, which for most species buys only a little more time.
From BBC ● Aug. 8, 2026
Castlelake is a US firm, although it has previously outlined how it would endeavour to comply with this rule.
From BBC ● Jul. 5, 2026
Simon Dowson, from Prodrive, said everyone at the north Oxfordshire firm was "very proud and honoured to be part of such an endeavour".
From BBC ● Jun. 1, 2026
The Charlton man provides physicality and endeavour and will pop up with the odd goal here and there - his record of 10 in 49 caps is not to be sniffed at.
From BBC ● Mar. 29, 2026
It was quite in vain for me to endeavour to make him sensible that he ought to speak to Miss Havisham.
From "Great Expectations" by Charles Dickens
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.