Etymologically

Etymology and origin of the French word jeûner

Confidence
Established
Formation
Inherited
First attested
1119 Philippe de Thaon, Comput More words from the 12th century
Inherited from
Latin ieiuno via Old French
Ultimate origin
Latin iēiūnus
Etymology tree
inherited borrowed derived
Latin iēiūnus
French jeun
Italian digiuno
English jejune
Latin ieiūnō
French jeûner
Derivations
From the same root
Latin ieiūnium ← iēiūnus

Pronunciation

  • /ʒø.ne/[1]
  • Louisiana: /ʒœ̃.ne/[1]

Forms

jeûner[1] Old French jeüner, jejuner, juner and geüner.[1][2][3]

Etymology

It is inherited from Old French jeüner,[1][3] inherited from Ecclesiastical Latin iēiūnō (“to fast, abstain from food”),[4][5][3][6] which in Christian Latin also meant “to go without, keep away from”.[4][5] The Latin verb is derived from iēiūnus (“fasting, hungry”),[5][3][1] also “lean, dry, poor”;[5] Rey connects it with ientō (“to breakfast”), a popular word of unclear origin.[5]

Cognate with Romanian ajuna, Italian digiunare, Occitan junar, Catalan dejunar, Spanish ayunar and Portuguese jejuar.[7]

Earliest recorded meaning

Philippe de Thaon's Comput (1119) uses it for abstaining from food out of penance.[4][8]

Semantic evolution

Outside religion the verb meant simply “to go without food” by about 1160, in the Eneas.[4][5] From the early 13th century, in the Reclus de Molliens, it was also used figuratively, “to deprive oneself of something”;[4][8] Rey dates from 1225 the sense “to abstain from all pleasures”, now literary except in the familiar sense “to be chaste”.[5] The causative faire jeûner ses domestiques is found in Voltaire.[8]

The noun jeûne (14th century, earlier juïne about 1100) and jeûneur (1546) were formed from the verb.[5] The Latin adjective survived in the old adjective jeun (1174), which went out of use in the 16th century, probably because its feminine could be confused with jeune; it remains only in the phrase à jeun “on an empty stomach” (1216).[5]

Timeline

  • 1119 – Philippe de Thaon uses it for fasting as penance.[4]
  • c. 1160 – In the Eneas it means to go without food.[4]
  • Early 13th century – The Reclus de Molliens uses it figuratively, “to deprive oneself”.[4]
  • 1216 – The phrase à jeun is recorded.[5]
  • 1546 – Jeûneur appears, first as an adjective.[5]

Meanings

Verb

  1. (intransitive) To go without food, by choice or by necessity: il a jeûné deux jours.[7][4]
  2. To keep a ritual fast.[7][2]
  3. (figurative) To go without something, to abstain from it.[4][2]

Word family

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  3. ^ a b c d Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  4. ^ 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
  5. ^ a b c d e f g h i j k Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  6. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 5, 32b
  7. ^ a b c Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  8. ^ a b c Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse

Related etymologies

Cite this entry

“Jeûner.” Etymologically, 14 Nov. 2026, etymologically.com/fr/je%C3%BBner. Accessed 15 Nov. 2026.

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