- Confidence
- Established
- Formation
- Borrowing
- First attested
- c. 1375
- Borrowed from
- Old French aseürer via Middle English
- Ultimate origin
- Latin (securus)
Pronunciation
- IPA: /əˈʃʊɹ/, /əˈʃɝ/ (US)[1]
Etymology
It is inherited from Middle English assuren, borrowed from Old French aseürer (“to reassure, render sure”), asseurer (modern French assurer),[2][3][4] from Vulgar Latin *assēcūrāre, from Latin ad-, to, and sēcūrus, safe (see secure).[2][3][5]
Earliest recorded meaning
To reassure or give confidence to, to make safe, and to pledge: about 1375, in Chaucer's Anelida and Arcite, in Barnhart, the late 14th century in Etymonline.[2][3]
Semantic evolution
To betroth (1393) and to make sure the possession of property (1572) are obsolete senses.[6] To make safe against risks, to insure, is from about 1385,[6] now especially of life insurance in Britain.[6][7] To render safe or secure from attack is from 1413,[6] and to make an event certain, to ensure, from 1622.[6] Assurance is from about 1385, in Chaucer.[2]
Timeline
- c. 1375 – to reassure.[2]
- c. 1385 – to insure.[6]
- 1393 – to betroth.[6]
- 1413 – to make safe.[6]
- 1622 – to ensure.[6]
Modern meaning
Verb
- To tell positively so as to remove doubt.
- To make someone feel sure; to convince or reassure.
- To make certain; to ensure.
- (chiefly British) To insure, especially a life.
Word family
- assurable
- assurer
Related words
References
- ^ Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
- ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
- ^ Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
- ^ a b c d e f g h i Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
- ^ Collins English Dictionary (2023), Glasgow: HarperCollins
Related etymologies
Cite this entry
“Assure.” Etymologically, 17 Oct. 2026, etymologically.com/en/assure. Accessed 17 Oct. 2026.
Last edited on . ·