Etymologically

décroître

Etymology and origin of the French word décroître

Confidence
Probable
Formation
Derivation
First attested
c. 1119 Philippe de Thaon, Comput More words from the 12th century
Ultimate origin
Latin crēscō
Etymology tree
inherited borrowed derived
Latin crēscō
French croître
French décroître
Italian crescere
Romanian crește
Spanish crecer
From the same root
Latin concrēscō ← crēscō
Latin dēcrēscō ← crēscō
Latin excrēscō ← crēscō
Latin incrēscō ← crēscō
Latin prōcrescō ← crēscō
Latin recrescō ← crēscō
French croissant ← croître
French cru ← croître
Italian crescendo ← crescere
Italian crescente ← crescere
Italian ricrescere ← crescere
Romanian creștere ← crește

Pronunciation

  • /de.kʁwatʁ/[1]

Forms

décroître[1] Old French descroistre and decroistre.[2][3]

Etymology

It is formed from French dé- + croître according to the TLFi, the DHLF and the GLLF.[4][5][6] The Grand Robert and the Petit Robert derive it instead from Vulgar Latin *discrēscō, a variant of dēcrēscō (“to decrease”) remade after the simple verb.[2][7] Bloch and Wartburg note that Old French often had decroistre after the Latin verb, and that this verb may have lived on in spoken Latin, with or without that remodelling;[3] Wiktionary thinks a French formation more likely.[1] The simple verb is from Latin crēscō (“to grow”).[3][8]

Compare Old Occitan descreisser, Spanish descrecer and Italian discrescere.[3][9]

Earliest recorded meaning

It is first found about 1119 in Philippe de Thaon's Comput, used transitively, “to make smaller”.[4][5]

Semantic evolution

In Old French the verb could still take an object: a 12th-century poem on Thomas Becket warns “se de rien la descreis” (“if you lessen her [the Church] in anything”).[9] The intransitive use won out: a 13th-century text speaks of the great waves descreütes, gone down after the Flood.[9] Classical French still used the verb more widely than today,[6] but the modern verb is intransitive only, “to grow less little by little”.[5][4]

It formed a family of its own: décroît (1174), first “decline” and later the waning of the Moon, décroissement (about 1210), décroissance (about 1265), décroissant (1276) and décrue (16th century), the falling of waters after a flood.[5]

Timeline

  • c. 1119 – Philippe de Thaon uses it transitively in his Comput.[4]
  • 1160 – The form descroistre is recorded.[2][7]
  • 1174 – The derivative décroît appears.[5]
  • c. 1265 – Décroissance appears.[5]
  • 1542 – Décrue is recorded.[3]

Meanings

Verb

  1. (intransitive) To decrease gradually, to grow smaller or weaker in size, strength, number or length: la rivière décroît depuis hier.[4][7][10]
  2. (intransitive) Of something moving away, to look smaller and smaller.[7]

Word family

  • décroissance
  • décroissant
  • décroissement
  • décroît
  • décrue

Usage notes

It is conjugated like croître, but its past participle décru has no circumflex.[2][7] The 1990 spelling reform allows décroitre.[10][11]

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, 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 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 Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  6. ^ a b Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  7. ^ a b c d e Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  8. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 2, 1326a
  9. ^ a b c Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  10. ^ a b Dictionnaire de français Larousse, larousse.fr/dictionnaires/francais (accessed 2024)
  11. ^ Dictionnaire Le Robert en ligne, dictionnaire.lerobert.com (accessed 2024)

Related etymologies

Cite this entry

“Décroître.” Etymologically, 14 Nov. 2026, etymologically.com/fr/d%C3%A9cro%C3%AEtre. Accessed 14 Nov. 2026.

Last edited on . ·