Etymologically

Etymology and origin of the French word rognon

Confidence
Established
Formation
Inherited
First attested
1174–1178 Étienne de Fougères, Manières More words from the 12th century
Inherited from
Latin *renio via Old French
Ultimate origin
Latin rēn

Pronunciation

  • /ʁɔ.ɲɔ̃/[1]

Forms

rognon m (plural rognons)[1] Old French roignon (late 12th century) and reignon (1174–78); rongnon about 1460 and rognon before 1613.[2][3][4]

Etymology

It is inherited from Old French roignon, inherited from Vulgar Latin *rēniōnem, the accusative of a derivative of rēn (“kidney”).[2][5][6][3] The ⟨o⟩ of the first syllable comes from vowel assimilation to the ending, through a form *rōniōnem.[2][5][3] Forms with ⟨re-⟩ and ⟨ro-⟩ lived side by side in Gallo-Romance, Italian and Catalan, and the written language finally settled on the form with ⟨ro-⟩.[2]

Cognate with Italian rognone, Old Occitan renhon, Catalan ronyó, Spanish riñón and the Guernsey Norman rignon.[2][7] Spanish and Portuguese have only the forms with ⟨re-⟩.[2]

Earliest recorded meaning

Étienne de Fougères has the form reignon in 1174–78.[2] In Raoul de Cambrai (late 12th century) roignon is the kidney of a man: the poet speaks of driving the iron through Gautier's roignons.[2][8]

Semantic evolution

Until the classical period rognon was the ordinary word for the human kidney; it also meant the hip by metonymy (late 12th century).[3] The animal's kidney is recorded in the Roman de Renart (1205–50).[2] When physicians borrowed Latin rēn as rein, rognon was narrowed to the kidneys of animals and became a butcher's and cook's word.[2][5]

By analogy it named the testicles of some animals, as in rognon de coq (1690), and certain elongated plums, beans and grapes (1701).[3][2] In late 19th-century slang it was one of the popular words for a man's testicle.[3] Likeness of shape gave the geological sense “rounded mass of one mineral inside another rock” (1779, Saussure), a fishing spoon (1904) and, in the decorative arts, a small kidney-shaped Louis XV table.[3][2] The human sense survives in popular speech for the lower back and in Quebec French.[9][2]

Timeline

  • 1174–78 – Étienne de Fougères writes reignon.[2]
  • late 12th century – Roignon “human kidney” in Raoul de Cambrai.[2]
  • 1205–50 – The Roman de Renart uses it for an animal's kidney.[2]
  • c. 1460 – Villon writes rongnons.[4][8]
  • 1690 – Furetière records it for the testicles of the ram and the cock.[2]
  • 1779 – H. B. de Saussure uses it in geology.[2]
  • 1904 – First recorded as a fishing spoon.[3]

Meanings

Noun

  1. (cooking) The kidney of an animal used as food: un rognon d'agneau, des rognons de porc à la moutarde.[9][1]
  2. Rognons blancs: the testicles of a butcher's animal, cooked as food.[9]
  3. (dated or Quebec) A human kidney;[9][2] (popular) the small of the back, the loins.[9][2]
  4. (geology) A rounded mass of mineral embedded in a different rock, a nodule.[9][4]
  5. (mountaineering) A rock outcrop that rises above the surface of a glacier or snowfield.[9]
  6. (furniture) A kidney-shaped table: table rognon.[4][3]

Word family

  • rognonnade

Usage notes

La main sur le rognon “hand on hip” is a popular phrase for a defiant stance;[2][8] Littré gives mettre les poings sur les rognons, the attitude of people quarrelling.[2][8]

References

  1. ^ a b c 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 q r s t u v 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
  3. ^ a b c d e f g h i Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  4. ^ a b c d Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  5. ^ a b c Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  6. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 10, 255b
  7. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  8. ^ a b c d Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  9. ^ a b c d e f g Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert

Related etymologies

Cite this entry

“Rognon.” Etymologically, 14 Nov. 2026, etymologically.com/fr/rognon. Accessed 15 Nov. 2026.

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