Etymologically

cadet

Etymology and origin of the English word cadet

Formation
Borrowing
Borrowed from
French cadet

Pronunciation

  • IPA: /kəˈdɛt/[1]

Etymology

It is borrowed from French cadet,[2][3][4][5][6] from Gascon capdet “chief, captain”,[2][3][4][5][6] from Late Latin capitellum (“little head”),[2][5][3] a diminutive of Latin caput (“head”).[2][3][4][5]

Earliest recorded meaning

A younger son or brother (1610).[7][3][4][5]

Semantic evolution

The eldest son was regarded as the head of the family and a younger son as a “little head”.[4] Younger sons of noble Gascon families commonly served as officers in the French army,[3][4] so the word came to mean a gentleman who entered the army to learn the profession and win a commission (1651).[3][4][7] From this came the sense of a student at a military or naval academy (1775).[3][4][7] In New Zealand a cadet was a young man learning sheep-farming (1842).[7][1] The Scottish form cadee gave caddie.[4]

Timeline

  • 1610 – a younger son or brother.[7][3][5]
  • 1646 – the youngest son.[7]
  • 1651 – a gentleman entering the army to train as an officer.[3][4]
  • 1775 – a student at a military college.[7][3][4]
  • 1842 – New Zealand, a young man learning sheep-farming.[7]
  • 1873 – a schoolboy receiving military training.[7]

Modern meaning

Noun

  1. A student training to be an officer, especially at a military academy.
  2. A younger son or brother, or the youngest son.
  3. A trainee in a business or profession.
  4. (slang) A pimp.

Word family

  • cadetship
  • space cadet

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin
  3. ^ a b c d e f g h i j k Barnhart, Robert K., ed. (1995), The Barnhart Concise Dictionary of Etymology, New York: HarperCollins
  4. ^ a b c d e f g h i j k Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d e f Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
  6. ^ a b Random House Webster's Unabridged Dictionary (1999), 2nd ed., New York: Random House
  7. ^ 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

Related etymologies

Cite this entry

“Cadet.” Etymologically, 15 Oct. 2026, etymologically.com/en/cadet. Accessed 15 Oct. 2026.

Last edited on . ·