Etymologically

Etymology and origin of the French word réduire

Confidence
Established
Formation
Borrowing
First attested
c. 1170, Chrétien de Troyes, Erec et Enide
Borrowed from
Latin reduco
Ultimate origin
Latin dūcō
Etymology tree
inherited borrowed derived
Latin duco
Latin reduco
French réduire
From the same root
Latin diduco ← duco
Latin ducto ← duco
Latin ductor ← duco
Latin ductus ← duco
Latin perduco ← duco
Latin praeduco ← duco
Latin produco ← duco
Latin seduco ← duco
Latin subduco ← duco
Latin traduco ← duco
English reduce ← reduco
Latin reductus ← reduco

Pronunciation

  • /ʁe.dɥiʁ/[1]

Forms

réduire[1] Middle French also had a form closer to the Latin, reducer, in the 14th and 15th centuries.[2]

Etymology

It is borrowed from Latin redūcō (“to lead back, bring back”), with its form adapted to French after conduire and the other verbs in ⟨-duire⟩ such as déduire.[2][3][4][5] The Latin verb is formed from re-, marking movement backwards, and dūcō (“to lead”).[2][6][7]

The TLFi and Rey date the first record to about 1170, in Chrétien de Troyes;[8][2] Bloch and Wartburg give 1370, when Oresme uses it in the senses “to bring back, restore”, which they call its main senses until the 16th century.[3] Wiktionary treats it as an alteration of the Latin verb that came down through Old and Middle French.[1]

Cognate with Old Occitan reduire, Catalan reduir, Spanish reducir and Italian ridurre.[9]

Earliest recorded meaning

The first record is the reflexive soi reduire, “to withdraw to a place, to hide”, in Chrétien de Troyes's Erec et Enide (about 1170).[8][2] Rey thinks this use was probably influenced by the noun réduit, a retreat.[2]

Semantic evolution

Until the 16th century the main sense was “to bring back, restore (to a place or state)”.[2][3] It survives in surgery, for setting a bone or putting back a displaced organ (14th century, then about 1560), supported by the noun réduction.[2][3] In Swiss French (recorded in 1611) and in the Franco-Provençal regions the verb still means “to put away, tidy”, and in rural use “to bring in (cattle, hay)”.[2]

The modern uses appear in Middle French and settle in the 16th century.[2] Oresme uses it about 1370 for making a thing consist in, or conform to, something else.[8] With a person as object it meant “to subdue” (about 1460), then “to force (someone) into a state of dependence or hardship” (1538), as in être réduit à (1673) and réduire au silence (about 1695).[2] With a thing as object it meant bringing something back to a simpler form, as in mathematics réduire une fraction (1520), and turning a body into another state, as in réduire en poudre (1538) and réduire en cendres (1665, Racine); the chemical sense is recorded by Richelet in 1680.[8][7][2]

The commonest sense today, “to make smaller in quantity, size or value”, dates from 1538 (Estienne); it was applied to drawings and models (1690, Furetière) and to music arranged for piano (1863, Sainte-Beuve).[8][2][10] The intransitive use, of a liquid that thickens by boiling, is dated by Rey to 1808 and by the TLFi, in cooking, to 1831 (Viard).[2][8]

Timeline

  • c. 1170 – Soi reduire “to withdraw, hide” in Chrétien de Troyes.[8]
  • 1370 – Oresme: reduire qqc. à “to make it consist in”.[8][3]
  • c. 1460–1470 – “To subdue” a people.[2][8]
  • 1520 – Réduire une fraction; the surgical sense in Jean Falcon.[8][7]
  • 1538 – Robert Estienne: to lower to a smaller amount or value, reduire en pouldre.[8]
  • 1611 – Swiss French “to put away, tidy”.[2]
  • 1665 – Racine: réduire en cendres.[7]
  • 1680 – Richelet records the chemical sense.[8]
  • 1831 – Viard: sauces that are left to reduce.[8]
  • 1874 – À prix réduits (Mallarmé).[8]

Meanings

Verb

  1. To make smaller in number, size, value or importance; to cut, lower: réduire ses dépenses de moitié.[11][1][4]
  2. To reproduce on a smaller scale (a drawing, a map, a picture).[8][1]
  3. Réduire qqn à, en: to bring someone by force into a state of submission or hardship: réduire au silence, en être réduit à, to be driven to.[4][12][2]
  4. To bring back to a simpler form or to its basic elements: réduire une fraction.[4][8]
  5. Réduire en: to turn into: réduire en poudre, réduire en miettes, réduire en cendres.[4][1]
  6. (medicine) To set, put back in place (a bone, a displaced organ).[4][12]
  7. (chemistry) To reduce (an oxide, a compound).[1][9]
  8. (music) To arrange (an orchestral work) for a smaller set of instruments, such as the piano.[8][10]
  9. (intransitive, cooking) Of a sauce or juice: to thicken by evaporation, faire réduire.[11][2]
  10. Se réduire à: to amount to, come down to.[1][2]

Word family

  • réduit

References

  1. ^ a b c d e f g h 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 Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  3. ^ a b c d e Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  4. ^ a b c d e f Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  5. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 10, 181a
  6. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  7. ^ a b c d Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  8. ^ a b c d e f g h i j k l m n o p q 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 Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  10. ^ a b Quemada, Bernard, ed. (1959–2006), Datations et documents lexicographiques (Base historique du vocabulaire français, BHVF), Paris: Klincksieck / CNRS / Champion; ATILF
  11. ^ a b Dictionnaire de français Larousse, larousse.fr/dictionnaires/francais (accessed 2024)
  12. ^ a b Dictionnaire Le Robert en ligne, dictionnaire.lerobert.com (accessed 2024)

Related etymologies

Cite this entry

“Réduire.” Etymologically, 22 Oct. 2026, etymologically.com/fr/r%C3%A9duire. Accessed 22 Oct. 2026.

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