Etymologically

infatuation

Etymology and origin of the English word infatuation

Confidence
Established
Formation
Borrowing
First attested
1649 Bishop J. Hall, Resolutions and Decisions More words from the 17th century
Borrowed from
Latin infatuatio
Ultimate origin
Latin fatuus
Etymology tree
inherited borrowed derived
English infatuate
English infatuation

Pronunciation

  • UK: /ɪnˌfætjuˈeɪʃ(ə)n/, /ɪnˌfætʃuˈeɪʃ(ə)n/[1]
  • US: /ɪnˌfætʃuˈeɪʃ(ə)n/[1]

Etymology

It is borrowed from Late Latin īnfatuātiō,[2][3][4][5] a noun of action from īnfatuō (“to make a fool of”),[2][6][3] which is formed from in- and fatuus (“foolish”).[7][8][3] Barnhart and the Shorter Oxford instead take it as formed from English infatuate + -ation, perhaps partly from French infatuation;[8][9] Etymonline allows all three routes.[6] The OED notes that the French word is recorded only from about 1700, in Littré.[2]

Earliest recorded meaning

The action of making someone foolish, or the state of being so possessed by folly: 1649, in Bishop J. Hall's Resolutions and Decisions of Divers Practical Cases of Conscience.[2][8] Etymonline and Dictionary.com date the word to the 1640s.[6][4]

Semantic evolution

The noun followed its verb, infatuate, which meant "to make foolish" from 1533 and "to inspire with a foolish passion" from 1567 in Barnhart's dating, or from the 1620s in Etymonline's.[8][6] At first infatuation was mostly the loss of judgment itself: Johnson (1755) defined it as the act of striking with folly, the deprivation of reason, and quoted a sermon by South on God smiting great abilities with great infatuations.[10][11] The Historical Thesaurus places it among words for amorous love from 1751,[12] and the OED now describes the word as chiefly used of an intense, often romantic and usually short-lived passion or admiration.[2] It can also name the person or thing that is the object of such a passion.[13][14]

Timeline

  • 1649 – the action of making foolish, or the state of being infatuated.[2][8]
  • 1751 – a foolish amorous passion.[12]

Meanings

Noun

  1. An intense, unreasoning and usually short-lived passion or attraction, especially a romantic one: His infatuation with the new neighbour lasted one summer.[13][2][14]
  2. Strong and unreasoning attachment to something, especially something unworthy of it: the town's infatuation with fast cars.[5][13]
  3. The person or thing that is the object of such a passion.[13][14]
  4. The act of infatuating someone, or the state of being infatuated; folly or loss of sound judgment.[5][10][11]

Word family

  • fatuous
  • fatuity

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  3. ^ a b c Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  4. ^ a b Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  5. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  6. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  7. ^ The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  8. ^ a b c d e Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  9. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  10. ^ a b Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  11. ^ a b Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
  12. ^ a b Kay, Christian; Roberts, Jane; Samuels, Michael; Wotherspoon, Irené, eds. (2009), Historical Thesaurus of the Oxford English Dictionary, Oxford: Oxford University Press; online edition (2024)
  13. ^ a b c d Collins English Dictionary (2023), Glasgow: HarperCollins
  14. ^ a b c The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin

Related etymologies

Cite this entry

“Infatuation.” Etymologically, 12 Nov. 2026, etymologically.com/en/infatuation. Accessed 13 Nov. 2026.

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