Etymologically

Etymology and origin of the English word folly

Confidence
Established
Formation
Borrowing
First attested
c. 1225 Ancrene Riwle
Borrowed from
Anglo-Norman folie via Middle English
Ultimate origin
Latin follis

Pronunciation

  • UK: /ˈfɒli/[1]
  • US: /ˈfɑli/[1]

Etymology

It is inherited from Middle English folie,[2][3][4] borrowed from Anglo-Norman folie, from Old French folie (“folly, madness, stupidity”),[5][6][7][8] from fol (“foolish, mad”) and the suffix -ie.[5][9][10] The adjective fol is the source of fool;[6][3] it comes from Latin follis (“bellows, leather bag”), which in Late Latin also meant a windbag or fool.[6][3] The Anglo-Norman word is recorded from 1113–19, with senses ranging from madness and foolishness to wickedness, crime and loose living.[8] The OED compares Old Occitan folia, Catalan follia and Italian follia.[5]

Earliest recorded meaning

Foolishness, lack of good sense, unwise conduct: about 1225, in the Ancrene Riwle.[5][7][2] Etymonline dates the word to the early 13th century.[6]

Semantic evolution

In Middle English the word covered much more than foolishness: it also meant wrongdoing and sin (from before 1275 to 1588), lewdness or fornication (about 1300 to 1702), and madness or rage (before 1400 to 1670).[5][6] Chaucer used it 94 times, in the senses folly, insanity, sin and lechery.[11] An example of foolishness, a foolish act or idea, is recorded from about 1300.[5][6] Johnson (1755) still gave "criminal weakness; depravity of mind" as its second sense.[12] From 1591, in R. Greene's Second Part of Conny-catching, folly was the name for an extravagant building that proved too costly to finish or was otherwise ridiculed;[5] Etymonline dates this sense to the 1650s.[6] The OED takes it as probably a simple development of the main sense, comparing the medieval Latin name stultitia Huberti, "Hubert's folly", for a costly castle Hubert de Burgh built in the Welsh Marches in 1228, but also mentions French folie (“country house”), an alteration of feuillée (“foliage, hut covered with leaves”).[5] Weekley likewise thought the sense partly due to Old French folie for a country pleasure-house,[13] and Etymonline notes that the word appears in English place names, especially of country estates, since Middle English.[6] From 1773 it was used of a purely ornamental structure, such as a tower or artificial ruin, in a large garden or park.[5] In the plural, follies has meant a glamorous theatrical revue since 1874, as in the Ziegfeld Follies, probably after French folie, a comic vaudeville piece.[5]

Timeline

  • c. 1225 – foolishness, lack of good sense.[5][7]
  • before 1275 – a wrongdoing, sin or crime (obsolete by 1588).[5]
  • c. 1300 – a foolish act, idea or practice; also lewdness (obsolete by 1702).[5][6]
  • before 1400 – madness, rage (obsolete by 1670).[5]
  • 1591 – an extravagant building ridiculed as foolish.[5]
  • 1773 – an ornamental tower, temple or sham ruin in a park.[5]
  • 1874 – plural, a theatrical revue with showgirls.[5]

Meanings

Noun

  1. Lack of good sense; foolishness: It would be folly to sail in this weather.[14][9][5]
  2. A foolish action, idea or undertaking.[14][9][5]
  3. A costly ornamental building, such as a sham castle, tower or ruin, built to please a fancy rather than for use.[14][9][5]
  4. follies (plural): a revue with elaborately costumed performers.[14][5]
  5. (archaic) wickedness, evil; also lewd conduct.[14][5][12]

Usage notes

In dialect, folly was used in Scotland and in northern and Midland counties from Northumberland to Warwickshire for a useless or ridiculous building,[15] and in Berkshire, Norfolk and Wiltshire for a clump of trees on the crest of a hill;[15] the OED records the latter as a rare southern use (1880–88) of uncertain origin.[5]

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b Kurath, Hans; Kuhn, Sherman M.; Lewis, Robert E., eds. (1952–2001), Middle English Dictionary, Ann Arbor: University of Michigan Press; online edition ed. Frances McSparran et al. (2000–2018)
  3. ^ a b c The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  4. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  5. ^ a b c d e f g h i j k l m n o p q r s t u v w Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  6. ^ a b c d e f g h i Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  7. ^ a b c Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  8. ^ a b Anglo-Norman Dictionary (AND2), Aberystwyth University, anglo-norman.net (2nd ed., 2005–)
  9. ^ a b c d Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  10. ^ Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  11. ^ Benson, Larry D., Glossarial Concordance to Middle English (Chaucer, Gower), Johns Hopkins University, github.com/jhu-digital-manuscripts/gcme
  12. ^ 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.
  13. ^ Weekley, Ernest (1921), An Etymological Dictionary of Modern English, London: John Murray
  14. ^ a b c d e Collins English Dictionary (2023), Glasgow: HarperCollins
  15. ^ a b Wright, Joseph, ed. (1898–1905), The English Dialect Dictionary, 6 vols., Oxford: Henry Frowde; via EDD Online 4.0, University of Innsbruck (CC BY 4.0)

Related etymologies

Cite this entry

“Folly.” Etymologically, 31 Oct. 2026, etymologically.com/en/folly. Accessed 1 Nov. 2026.

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