Etymologically

defense

Etymology and origin of the English word defense

Confidence
Established
Formation
Borrowing
First attested
c. 1300
Borrowed from
Old French defense via Middle English
Ultimate origin
Latin (dēfendere)

Pronunciation

  • IPA: /dɪˈfɛns/; /ˈdiːˌfɛns/ (US)[1]

Etymology

It is inherited from Middle English defense, defens,[2][3][4] a merger of two Old French words:[2][3] borrowed from Old French defense (“defence, prohibition”), from Late Latin dēfēnsa (“defence; vengeance”), a noun use of the feminine past participle of Latin dēfendere (“to ward off, protect”) (see defend);[2][3][5][6] and defens, from Medieval Latin dēfēnsum (“thing protected or forbidden”), its neuter past participle.[2][3][4] Merriam-Webster Unabridged traces the first to an assumed Vulgar Latin *dēfēnsa.[4]

Earliest recorded meaning

The act of guarding or shielding from attack; a fortified place (probably before 1300 in Barnhart, in Kyng Alisaunder; c. 1300 in Etymonline).[7][3]

Semantic evolution

In Middle English defens and defense merged.[2][3] The spelling defence arose by the same tendency that produced hence and pence;[3] Noah Webster made defense the American standard, while British English prefers defence.[3][1] By the late 14th century the word was used of a speech or writing answering an accusation and of a defendant's answer in a lawsuit.[3][8] The science of self-defence in fencing or boxing is recorded from about 1600.[3] By 1935 defense was used as a euphemism for a nation's military resources,[3] though Middle English already had man of defense, a warrior, and ship of defense, a warship.[3] In sports it means the players trying to stop the other side from scoring,[8][6] in which sense Americans often stress the first syllable, in contrast to offense.[6][1] The animal's natural weapons were called its defenses by 1889, and defense mechanism in psychology dates from 1913.[3] A verb defense, to take defensive action against an opposing team, dates from 1950 in Merriam-Webster.[6]

Timeline

  • c. 1300 – defending against attack; a fortified place.[3][2]
  • late 14th century – a speech or plea answering a charge.[3]
  • c. 1600 – the art of self-defence.[3]
  • 1889 – an animal's natural weapons.[3]
  • 1913 – defense mechanism.[3]
  • 1935 – national military resources.[3]
  • 1950 – as a verb in sports.[6]

Modern meaning

Noun

  1. The act of defending against attack, danger or injury.
  2. A means or method of defending; a defensive structure.
  3. An argument in support or justification of something.
  4. (law) A defendant's answer to a charge or claim; the defendant and their legal counsel.
  5. The art of defending oneself; self-defense.
  6. (sports) The team or players trying to stop the opponents from scoring; defensive play.
  7. The military forces and industries of a nation, and the policy concerning them.

Verb

  1. (sports) To try to stop an opposing team or player from scoring.

Word family

  • defenseless
  • defenselessly
  • defenselessness
  • defensible
  • defensive
  • nondefense
  • self-defense
  • defence
  • defend
  • defendant
  • fence
  • offense

Usage notes

Defense is the American spelling and defence the British.[3][1][9] In sports use, American speakers often pronounce it with the stress on the first syllable, as the opposite of offense.[6][1]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f Barnhart, Robert K., ed. (1995), The Barnhart Concise Dictionary of Etymology, New York: HarperCollins
  3. ^ a b c d e f g h i j k l m n o p q r s t Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  5. ^ The American Heritage Dictionary of the English Language (2000), 4th ed., Boston: Houghton Mifflin
  6. ^ a b c d e f Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
  7. ^ Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  8. ^ a b The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin
  9. ^ Collins English Dictionary (2023), Glasgow: HarperCollins

Related etymologies

Cite this entry

“Defense.” Etymologically, 14 Oct. 2026, etymologically.com/en/defense. Accessed 15 Oct. 2026.

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