Etymologically

Etymology and origin of the English word rabid

Confidence
Established
Formation
Borrowing
First attested
1594 Chapman, The Shadow of Night
Borrowed from
Latin rabidus
Ultimate origin
Latin rabiō
Etymology tree
inherited borrowed derived
Latin rabies
English rabies
Latin rabidus
English rabid
From the same root
Latin rabiosus ← rabies

Pronunciation

  • UK: /ˈɹæbɪd/, /ˈɹeɪbɪd/[1]
  • US: /ˈɹæbɪd/[1]

Etymology

It is borrowed from Latin rabidus (“raging, furious, mad”),[2][3][4][5][6] from rabiō (“to rave, be mad”) and the suffix -idus.[2][7][8] In Latin the adjective was used of frenzied feelings and of mad dogs.[2] The Latin verb is also the source of rabies and, through French, of rage.[7][9][3] Klein compares a Sanskrit word for violence and derives both from Proto-Indo-European *rabh-, which he takes to be a secondary form of *labh- (“to take, seize”);[7] Etymonline notes that some sources trace the family to *rebh- (“violent, impetuous”), also the source of Old English rabbian (“to rage”), but that de Vaan finds this uncertain.[3] The OED compares Old French rabi (c. 1243), Catalan ràbid and Spanish rábido, and earlier English rabious and rabiate.[2]

Earliest recorded meaning

Furious, raging; wildly aggressive or violent: 1594, in George Chapman's The Shadow of Night.[2][10] Barnhart dates it to about 1611, in Chapman's translation of the Iliad,[5] and Etymonline to the 1610s.[3]

Semantic evolution

From the general sense "raging", the word was applied from 1641 to feelings, passions and diseases that were unbridled, and to views that were extreme or fanatical.[2] Johnson (1755) defined it as "fierce; furious; mad".[11] From 1820, in Charles Lamb, it was used of a person holding an opinion or enthusiasm in an extreme form, the sense of a rabid supporter.[2] The medical sense "affected with rabies" is dated by the OED, in its revision of 2008, to 1650;[2] Barnhart and Etymonline give 1804,[5][3] and Hoad places it in the 19th century.[12] The sense "of or relating to rabies" (1733) is now rare.[2]

Timeline

  • 1594 – furious, raging, wildly violent.[2][10] Barnhart dates it to about 1611.[5]
  • 1641 – of feelings or views: unbridled; extreme, fanatical.[2]
  • 1650 – affected with rabies.[2] Barnhart and Etymonline date this sense to 1804.[5][3]
  • 1733 – of or relating to rabies.[2]
  • 1820 – of a person: holding an opinion or enthusiasm in an extreme form.[2]

Meanings

Adjective

  1. Holding a view or enthusiasm in an extreme or unreasonable form; fanatical, zealous: a rabid hockey supporter.[13][10][2]
  2. Affected with rabies: The farmer kept the children away from the rabid fox.[13][10][2]
  3. Extremely violent; furious or raging.[13][10][2]
  4. Of or relating to rabies (now rare).[2][13]

Word family

  • rabidity
  • rabidly
  • rabidness

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p q r Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  3. ^ a b c d e f Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  5. ^ a b c d e Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  6. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  7. ^ a b c Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  8. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  9. ^ Weekley, Ernest (1921), An Etymological Dictionary of Modern English, London: John Murray
  10. ^ a b c d e Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  11. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  12. ^ Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  13. ^ a b c d Collins English Dictionary (2023), Glasgow: HarperCollins

Related etymologies

Cite this entry

“Rabid.” Etymologically, 2 Nov. 2026, etymologically.com/en/rabid. Accessed 2 Nov. 2026.

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