Etymologically
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reconnaissance

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Pronunciation

  • UK: /rɪˈkɒnɪs(ə)nts/, /rɪˈkɒnɪs(ə)ns/[1]
  • US: /rɪˈkɑːnəs(ə)nts/, /rɪˈkɑːnəs(ə)ns/[1]

Etymology

It is borrowed from French reconnaissance (“recognition; exploration, survey”),[2][3][4][5] from reconnaître (“to recognize”),[6][7][8] earlier Middle French reconoissance,[4][9] Old French reconoissance (“recognition, acknowledgement”),[2][5] from reconoistre (“to recognize”),[2][10] from Latin recognōscō.[8] In French it was used in military contexts for examining the terrain or the enemy's positions from 1587, and of a naval survey from 1771.[3] The older French spelling had already been borrowed as reconnoissance (1666), and the Old French noun much earlier as recognizance.[3][7][11][5] It is related to reconnoitre and recognize.[8][12]

Earliest recorded meaning

The military examination or survey of a stretch of country to find the position or strength of an enemy: 1779, in an affidavit printed in Benjamin Franklin's papers.[3][4]

Semantic evolution

Etymonline and Barnhart date the word to 1810, in Wellington's dispatches, and call it a word of the Napoleonic Wars;[5][13][11] the OED has an American record from 1779,[3] and Collins dates the borrowing to the 18th century.[10] The older spelling reconnoissance was used in the same military sense from 1802 and was common through the 19th century.[3][7] From 1811 the word could also mean the body of troops sent to reconnoitre; from 1847 it also meant an advance in force to find the enemy.[3] Non-military surveys followed: a survey to gain information of any kind (1815) and the survey of an area for engineering or scientific purposes (1838).[3][10] MWU also records it for aerial photography of installations or activity.[4]

Timeline

  • 1666 – reconnoissance, in the sense of recognizance (obsolete).[3]
  • 1779 – military survey of a territory.[3][4]
  • 1802 – reconnoissance in the military sense.[3]
  • 1810 – in Wellington's dispatches.[5][13]
  • 1811 – a body of troops sent to reconnoitre.[3]
  • 1815 – a survey to gain information, outside military use.[3]
  • 1838 – a survey of land for practical or scientific purposes.[3]
  • 1847 – an advance by a large force to find the enemy.[3]

Meanings

Noun

  1. A military survey of enemy territory to learn the position, strength and movements of the enemy, by patrols, aircraft or other means.[4][10][3]
  2. The act of reconnoitring; any preliminary exploratory survey or inspection made to gather information: a quick reconnaissance of the shop before the sale.[4][10][3]
  3. A preliminary inspection of an area of land before an engineering survey.[10][3]
  4. A body of troops sent out to reconnoitre.[3]

Word family

  • recon

Usage notes

The spelling reconnoissance is a less common variant.[4][10] The informal clippings are recce in British and recon in American English.[10][4]

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  3. ^ a b c d e f g h i j k l m n o p q r s Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  4. ^ a b c d e f g h i Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  5. ^ a b c d e Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  6. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
  7. ^ a b c Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  8. ^ a b c Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  9. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  10. ^ a b c d e f g h Collins English Dictionary (2023), Glasgow: HarperCollins
  11. ^ a b Barnhart, Robert K., ed. (1995), The Barnhart Concise Dictionary of Etymology, New York: HarperCollins
  12. ^ Ayto, John (2005), Word Origins: The Secret Histories of English Words from A to Z, 2nd ed., London: A & C Black
  13. ^ a b Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology