Etymologically

Etymology and origin of the French word foudre

French has two words spelled foudre: the lightning, inherited from Latin, and the large cask, borrowed from German.[1][2][3]

foudre1 lightning

Confidence
Established
Formation
Inherited
First attested
c. 1100 Chanson de Roland
Inherited from
Latin *fulgura via Old French
Ultimate origin
Latin fulgur

Pronunciation

Forms

foudre f (plural foudres)[4] Old French fuldre, fuildre, fodre; the form foudre dates from the end of the 12th century.[3][5][6]

Etymology

The word for lightning is inherited from Old French fuldre, inherited from Vulgar Latin *fulgura, the neuter plural of Latin fulgur (“flash of lightning”) taken as a feminine singular.[3][1][5][7] The Latin noun comes from fulgeō (“to flash, shine”), of a family that Rey traces to an Indo-European root Proto-Indo-European *bhleg- (“to shine”).[3] In Classical Latin fulmen meant the thunderbolt and the noun from which this word comes meant the flash.[8][9][3] The former disappeared in Late Latin and the latter took over its sense.[8][9][3] The TLFi presents the word as taken from the Latin plural.[8]

Bloch and Wartburg explain the feminine gender by the Latin plural, but derive the Old French form fuildre from a Late Latin fulgerem, like Old Occitan folzer, and Italian folgore from a form *fulgurem.[9] Littré also cites foldre.[6]

Earliest recorded meaning

It is first found in the Chanson de Roland (about 1100), for lightning: Chéent i fuldres et menut et souvent “lightning bolts fall there, thick and often”.[8][6]

Semantic evolution

By comparison the word named the flaming bolt held by Jupiter (1604), in the masculine, and by analogy with its destructive force the firepower of a weapon.[3] Since lightning was taken for a sign of divine anger, foudre came to mean a condemnation or reproach (1594), now in the plural (1728), and les foudres de l'éloquence (1690) the arguments that crush an opponent.[3][8] The masculine foudre de guerre (1559), a warrior nothing can resist, is now ironic.[8][3]

From the suddenness of lightning, coup de foudre meant a disconcerting event (Corneille, 1642).[8][3] Since 1813 it has meant sudden and violent love.[8][3] The word is feminine in ordinary use, but elevated language and poetry may make it masculine.[6]

Timeline

  • c. 1100 – Fuldres appears in the Chanson de Roland.[8]
  • late 12th century – The form foudre appears.[3][5]
  • 1559 – Foudre de guerre “invincible warrior” in Olivier de Magny.[8]
  • 1594 – Used in the masculine for a condemnation.[8]
  • 1604 – Used for Jupiter's thunderbolt.[3]
  • 1642 – Corneille uses coup de foudre for a disconcerting event.[8]
  • 1690 – Les foudres de l'éloquence.[3]
  • 1813 – Coup de foudre “love at first sight” in Jouy.[8]

Meanings

Noun

  1. lightning, an electric discharge between clouds or between a cloud and the ground: frappé par la foudre (struck by lightning).[2][10][4]
  2. (masculine; mythology, heraldry) The flaming thunderbolt held by Jupiter, or its figure.[2][11][4]
  3. Coup de foudre: love at first sight; formerly a sudden disaster.[2][8]
  4. (plural, figurative) Reproaches, condemnation, the anger of an authority.[3][11]
  5. (masculine, ironic) Un foudre de guerre: a great warrior.[3][8]

Word family

  • foudroyer
  • foudroyant
  • foudroiement

foudre2 large cask

Confidence
Established
Formation
Borrowing
First attested
1669
Borrowed from
German Fuder
Ultimate origin
Old High German fuodar

Pronunciation

Forms

foudre m (plural foudres)[4] An isolated 15th-century voudre “cask for Rhine wine” comes from voeder.[3][9]

Etymology

The word for the large cask is borrowed from German Fuder (“cartload, measure for liquids”), recorded in 1669.[3][1][2][12] The German word continues Old High German fuodar, fodar (“cart”), and Middle High German vuoder (“cartload, liquid measure”).[3][4] Picard had voder “a measure” in the 13th century, and the 15th-century voudre was taken from Middle Dutch voeder (“wine measure”), itself from German.[3]

Cognate with the English word fother, Dutch voer and Dutch voeder.[4]

Earliest recorded meaning

Furetière's dictionary (1690) defines it as un grand vaisseau dont on se sert en Allemagne “a large vessel used in Germany”;[9] an earlier record has six voudres de vin du Rhin “six tuns of Rhine wine” in the 15th century.[9][3]

Semantic evolution

Despite its clash with the word for lightning, the cask name survived, but it remained technical or rare, for a cask of 50 to 300 hectolitres.[3][2]

Timeline

  • 15th century – Voudre is used for a cask of Rhine wine.[9][3]
  • 1669 – Foudre is borrowed from German.[3]
  • 1690 – Furetière defines it.[9][1]

Meanings

Noun

  1. A tun, a very large wooden cask of 50 to 300 hectolitres for wine.[2][11]
  2. A foeder, a large barrel for ageing beer or wine.[4]

References

  1. ^ a b c d Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  2. ^ a b c d e f g Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  3. ^ a b c d e f g h i j k l m n o p q r s t u v w x Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  4. ^ a b c d e f g h i Wiktionary, the free dictionary, https://en.wiktionary.org
  5. ^ a b c Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  6. ^ a b c d Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  7. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 3, 841b
  8. ^ a b c d e f g h i j k l m n o 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
  9. ^ a b c d e f g h Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  10. ^ Dictionnaire Le Robert en ligne, dictionnaire.lerobert.com (accessed 2024)
  11. ^ a b c Dictionnaire de français Larousse, larousse.fr/dictionnaires/francais (accessed 2024)
  12. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 15/2, 186a

Related etymologies

Cite this entry

“Foudre.” Etymologically, 11 Nov. 2026, etymologically.com/fr/foudre. Accessed 12 Nov. 2026.

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