Etymologically

Etymology and origin of the Old French word enseurer

Confidence
Established
Formation
Derivation
First attested
1271–1272 an Anglo-Norman text cited by the AND More words from the 13th century
Ultimate origin
Latin sēcūrus
Etymology tree
inherited borrowed derived
Latin cūra
Italian cura
Spanish cura
Latin sēcūrus
French sûr
Italian sicuro
Spanish seguro
Dutch zeker
English secure
German sicher
Old French enseurer
From the same root
Latin cūrātīvus ← cūra
Latin cūriōsus ← cūra
Latin cūrō ← cūra
Latin incūria ← cūra
Latin assecurō ← sēcūrus
Latin insēcūrus ← sēcūrus
Latin sēcūrē ← sēcūrus
Latin sēcūritās ← sēcūrus
Spanish seguramente ← sēcūrus
French sûrement ← sûr
Italian sicuramente ← sicuro
Italian sicurezza ← sicuro
Italian sicurtà ← sicuro
German Sicherheit ← sicher

Forms

enseurer v.[1][2]

Etymology

It is formed from Old French en- + seur (“sure, safe”), a verb made on the adjective.[1][3][4] The adjective is from Latin sēcūrus (“free from care”),[5] itself made of sē- (“without”) and cūra (“care”).[6][5] The AND refers the verb to the FEW's article on the Latin adjective, and Tobler–Lommatzsch sets it beside the parallel asseurer.[1][3] Etymonline thinks the verb was probably influenced by that parallel formation.[4]

Earliest recorded meaning

The word is Anglo-Norman: the AND's first citation is of 1271–72.[1] Greimas dates the word to 1304 in the Year Books of the English courts, with the sense "to assure",[7] and Godefroy quotes the same law reports: Pur enseurer l'estat Adam "to secure Adam's estate".[2]

Semantic evolution

From making someone or something safe the verb passed to giving a pledge or guarantee, and reflexively to feeling secure or banding together for safety; the past participle served as an adjective, "safe, protected" and "assured, certain of".[1] Tobler–Lommatzsch has no quotation of its own and refers to Godefroy.[3] It lived on in English as ensure and its spelling variant insure.[8][4]

Timeline

  • 1271–1272 – first citation in the AND.[1]
  • 1304 – enseurer "to assure" in the Year Books.[7][2]
  • c. 1390 – Middle English enseure "to assure".[8]

Meanings

Verb

  1. to make safe, secure, protect.[1]
  2. to assure, promise, pledge.[1][7]
  3. to guarantee, confirm solemnly.[1]
  4. (reflexive) to feel secure or confident; to band together.[1]
  5. (past participle) safe, protected; confirmed as genuine; assured or certain of something.[1]

Anglo-Norman

The AND heads the verb enseurer, with the spelling ensurer, and dates its first citation to 1271–72.[1] Middle English took it as ensuren, also spelled enseuren, "to assure (someone that something is true)", often in the verse filler "I you ensure"; the MED derives it from the Old French verb.[8] Its English descendants are ensure, late 14th century, and insure, a mid-15th-century spelling variant that later took the commercial sense of insurance.[4]

Descendants

  • seur
  • asseurer

Usage notes

The AND, Godefroy and Greimas head the verb enseurer,[1][2][7] and Tobler–Lommatzsch ensëurer.[3]

References

  1. ^ a b c d e f g h i j k l m n Anglo-Norman Dictionary (AND2), Aberystwyth University, anglo-norman.net (2nd ed., 2005–), p. s.v. enseurer
  2. ^ a b c d Godefroy, Frédéric (1881–1902), Dictionnaire de l'ancienne langue française et de tous ses dialectes du IXe au XVe siècle, 10 vols., Paris: Vieweg / Bouillon, p. 3:236
  3. ^ a b c d e Tobler, Adolf; Lommatzsch, Erhard (1925–2002), Altfranzösisches Wörterbuch, 11 vols., Berlin / Wiesbaden / Stuttgart: Weidmann / Steiner, p. 3:528
  4. ^ a b c d e Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  6. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. sēcūrus
  7. ^ a b c d Greimas, Algirdas Julien (1979), Dictionnaire de l'ancien français jusqu'au milieu du XIVe siècle, 2nd ed., Paris: Larousse (printing of 1988), p. s.v. enseurer
  8. ^ a b c d Kurath, Hans; Kuhn, Sherman M.; Lewis, Robert E., eds. (1952–2001), Middle English Dictionary, Ann Arbor: University of Michigan Press; online edition ed. Frances McSparran et al. (2000–2018)

Related etymologies

Cite this entry

“Enseurer.” Etymologically, 13 Nov. 2026, etymologically.com/fro/enseurer. Accessed 13 Nov. 2026.

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