Etymologically

Etymology and origin of the French word fléau

Confidence
Established
Formation
Inherited
First attested
950–1000 Vie de saint Léger More words from the 10th century
Inherited from
Latin flagellum via Old French
Ultimate origin
Latin flagrum
Etymology tree
inherited borrowed derived
Latin flagrum
Latin flagellum
French fléau
From the same root
English flail ← flagellum
Latin flagellō ← flagellum

Pronunciation

Forms

fléau m (plural fléaux)[1] Old French flaiel (late 10th century) and flael (12th century); fléau from the 13th century.[2][3] Middle French flayau is found in the 15th century.[4]

Etymology

It is inherited from Old French flaiel, inherited from Latin flagellum (“whip, scourge”),[5][2][6][7] a diminutive of flagrum (“whip, lash”), which is of unknown origin.[2][8] Already in Classical Latin the word had the figurative sense “calamity”; in Late Latin (4th century) it came to name the tool for threshing grain, and in Church Latin it meant “punishment”, especially punishment sent by God, then “pain, affliction”.[5][2][6]

Cognate with Old Occitan flagel, Catalan flagell and Italian flagello.[6][4]

Earliest recorded meaning

It is first recorded, as flaiel, in the late 10th century in the Vie de saint Léger, in the figurative sense “pain, torment”.[5][2][3]

Semantic evolution

French took over both Latin values.[2] The war weapon shaped like a flail, the fléau d'armes, is named from about 1130,[2] and the threshing flail itself from 1178, in the Roman de Renart.[5][2] By 1549 the word was also used for the beam of a balance;[5][2] Littré suggests that such rocking parts were named after the to-and-fro movement of the flail.[4]

From 1580 (Montaigne) it has also named a person or thing so harmful that it seems an instrument of God's anger, after the Latin flagellum Dei “scourge of God”, said in particular of Attila.[2][3] Bloch and Wartburg trace the phrase back to the Bible, where the Book of Isaiah uses it of Nebuchadnezzar.[6]

Timeline

  • 950–1000 – Flaiel “pain, torment” appears in the Vie de saint Léger.[5][3]
  • c. 1130 – The war flail is recorded.[2]
  • c. 1160 – The Eneas uses the word of a medieval weapon.[5]
  • 1178 – The threshing flail is named in the Roman de Renart.[5][2]
  • 13th century – The form fléau appears.[2]
  • 1549 – Robert Estienne records the sense “beam of a balance”.[5][3]
  • 1580 – Montaigne uses it of a person or thing that is a scourge.[2][3]

Meanings

Noun

  1. A flail for threshing grain, made of a handle and a beater joined by leather straps.[8][9][5]
  2. (historical) Fléau d'armes: a war flail, a short handle with a chain ending in a spiked ball.[8][9]
  3. The beam of a balance, at whose ends the pans hang.[8][9]
  4. A calamity or scourge that strikes a people: la sécheresse est un fléau pour la région.[9][8]
  5. A harmful person or thing, a pest.[9][2]

Usage notes

In Old French the nominative was li flaels or flaaus and the oblique case le flael.[4] In Jean Marot fleau is a single syllable.[4]

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 Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  3. ^ a b c d e f Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  4. ^ a b c d e Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  5. ^ a b c d e f g h i j Trésor de la langue française informatisé (2004), ATILF – CNRS & Université de Lorraine, atilf.fr/tlfi; electronic version of Imbs, Paul; Quemada, Bernard, eds. (1971–1994), Trésor de la langue française, Paris: CNRS / Gallimard
  6. ^ a b c d Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  7. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 3, 595b
  8. ^ a b c d e Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  9. ^ a b c d e Dictionnaire Le Robert en ligne, dictionnaire.lerobert.com (accessed 2024)

Related etymologies

Cite this entry

“Fléau.” Etymologically, 14 Nov. 2026, etymologically.com/fr/fl%C3%A9au. Accessed 15 Nov. 2026.

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