Etymologically

Etymology and origin of the French word ardeur

Confidence
Probable
Formation
Borrowing
First attested
1130 Job More words from the 12th century
Borrowed from
Latin ardor via Old French
Ultimate origin
Latin ardor
Etymology tree
inherited borrowed derived
Latin āreō
Latin āridus
English arid
Italian arido
Latin ārdeō
French ardre
Italian ardere
Romanian arde
Spanish arder
Latin ārdor
Spanish ardor
French ardeur
From the same root
Latin ārēscō ← āreō
Latin āriditās ← āridus
Latin ārdēns ← ārdeō
Latin ārdēscō ← ārdeō
Latin ārdifētus ← ārdeō
Latin exārdeō ← ārdeō
English ardor ← ārdor

Pronunciation

Forms

ardeur f (plural ardeurs)[1] Old French ardor, ardur, ardour; the form ardeur is found from about 1225.[2][1][3]

Etymology

It is inherited from Old French ardor, borrowed from Latin ardor (“burning, glow; intense desire”), from ardeō (“to burn”).[2][1][4][5] Rey treats it as a borrowing of the 12th century, while Bloch and Wartburg simply give the Latin accusative ardōrem as its source, without calling it a borrowing.[2][6] The Old French forms were remade into the present one about 1225.[2] Littré notes that 16th-century writers, out of zeal for the etymology, made it masculine against usage.[3]

Compare Italian ardore, Occitan ardor, Catalan ardor, Spanish ardor and Portuguese ardor.[7][3]

Earliest recorded meaning

The Grand Robert and the GLLF date it to 1130, in a translation of the Book of Job.[4][8] Its first sense was “intense heat”, used for example of the fire of hell, then a burning sensation.[2]

Semantic evolution

The concrete senses faded as the verb ardre died out and other words linked to feu and brûler took their place;[2] ardeur de la fièvre (1550) and ardeur d'estomac (1783) are archaic.[2] The psychological uses, taken straight from Latin, held better: they are old (about 1170) and moved from “intense desire” to “active energy” as the image of fire was lost.[2] The sense “religious fervour” (1226) is archaic; modern French uses the word mainly for “zeal, energy” (15th century) and for “amorous passion” (since 1190).[2]

A related noun ardure “burn, heat”, from Late Latin ardura, was used from the 12th to the 16th century.[2] English ardor (mid-15th century) came from that Old French ardure.[9]

Timeline

  • 1130 – First recorded, in a translation of the Book of Job.[4][8]
  • c. 1170 – First psychological uses.[2]
  • 1190 – It is used for amorous passion.[2]
  • c. 1225 – The form ardeur replaces ardor, ardur.[2]
  • 1226 – It means religious fervour.[2]
  • Mid-15th century – English ardour is recorded.[9]
  • 15th century – The sense “zeal, energy” appears.[2]
  • 1550 – Ardeur de la fièvre is recorded.[2]

Meanings

Noun

  1. (literary) Heat of great intensity: l'ardeur du soleil, les ardeurs de l'été.[10][11]
  2. (dated) A burning sensation, as of fever or thirst.[4][8]
  3. (figurative) Energy full of liveliness, zeal, eagerness: l'ardeur au travail, travailler avec ardeur.[10][3]
  4. (figurative) Fervour, passion in feelings;[10][8] l'ardeur des sens, sexual desire;[10][8] (familiar) modérez vos ardeurs “calm down”.[10][8]

References

  1. ^ a b c d 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 Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  3. ^ a b c d Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  4. ^ a b c d Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  5. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 25, 151a
  6. ^ Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  7. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  8. ^ a b c d e f Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  9. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  10. ^ a b c d e Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  11. ^ Dictionnaire de français Larousse, larousse.fr/dictionnaires/francais (accessed 2024)

Related etymologies

Cite this entry

“Ardeur.” Etymologically, 14 Nov. 2026, etymologically.com/fr/ardeur. Accessed 15 Nov. 2026.

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