Etymologically

accroître

Etymology and origin of the French word accroître

Confidence
Established
Formation
Inherited
First attested
c. 1150 Li Quatre Livre des Reis More words from the 12th century
Inherited from
Latin accresco via Old French
Ultimate origin
Latin crēscō

Pronunciation

  • /a.kʁwatʁ/[1]

Forms

accroître[1] Old French acreistre, then acroistre (before 1220) and Middle French accroistre (15th century).[2][1]

Etymology

It is inherited from Old French acreistre, inherited from Latin accrēscō, formed from ad- and crēscō (“to grow”).[3][2][4][5] The Latin verb was only intransitive in Classical and Late Latin and became transitive in Medieval Latin, but was never reflexive.[3][2] The Old French form was remade after croître into acroistre.[2]

Cognate with Italian accrescere, Spanish acrecer and Old Occitan acreisser.[4][6]

Earliest recorded meaning

It is first found in the mid-12th century in Li Quatre Livre des Reis, translating the Latin amplificet: Deu acreissed le num Salemun “may God make the name of Solomon great”, in the sense “to magnify, give lustre to”.[3][2]

Semantic evolution

From “to magnify” the verb passed to “to increase” an abstract thing (1180, Marie de France) and a possession (before 1220, Henri de Valenciennes), which is still its main sense.[3][2] An intransitive use, “to grow in number and power”, appears in the 13th century;[3] Rey calls it obsolete, though the Académie still gave son revenu accroît in 1932.[2][3] Furetière recorded the legal sense in 1690, of a share that passes to an associate on another's death or absence, and the reflexive s'accroître is found in Commynes in 1498.[3]

Classical French could also say accroître quelqu'un, to give a person more power or honour.[7][6]

Timeline

  • c. 1150 – Acreistre “to magnify” appears in Li Quatre Livre des Reis.[3][2]
  • 1180 – Marie de France uses it for “to increase”.[3]
  • before 1220 – The form acroistre and the sense “to enlarge a possession” appear in Henri de Valenciennes.[3][2]
  • 13th century – It is used intransitively for “to grow in number”.[3][2]
  • 15th century – The spelling accroistre appears.[2]
  • 1498 – The reflexive s'accroistre is found in Commynes.[3]
  • 1690 – Furetière records the legal sense.[3]

Meanings

Verb

  1. (transitive) To make larger or more important; to increase: accroître sa fortune, accroître la production.[8][6][3]
  2. (reflexive) s'accroître: to grow, to increase: La ville s'est accrue de dix mille habitants.[8][1]
  3. (law) Of a share, to fall to the benefit of someone: la part des absents accroît aux présents.[8][6]
  4. (intransitive, dated) To become larger.[6][2]

Word family

  • accroissable
  • accroissement
  • accru

Usage notes

Accroître is conjugated like croître, but its past participle accru has no circumflex.[9][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 Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  3. ^ a b c d e f g h i j k l m n 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
  4. ^ a b Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  5. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 2, 1327b
  6. ^ a b c d e Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  7. ^ Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  8. ^ a b c d Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  9. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert

Related etymologies

Cite this entry

“Accroître.” Etymologically, 14 Nov. 2026, etymologically.com/fr/accro%C3%AEtre. Accessed 15 Nov. 2026.

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