Etymologically

Etymology and origin of the French word imparfait

Confidence
Established
Formation
Borrowing
First attested
1370–1372 Oresme, Éthiques More words from the 14th century
Borrowed from
Latin imperfectus
Ultimate origin
Latin faciō
Etymology tree
inherited borrowed derived
Latin faciō
Aromanian fac
Catalan fer
French faire
Italian fare
Romanian face
Spanish hacer
Latin perficiō
French parfaire
Latin perfectus
French parfait
Italian perfetto
Romanian perfect
Spanish perfecto
Latin imperfectus
French imparfait
Spanish imperfecto
From the same root
English surfeit ← faciō
French affaire ← faciō
French défaire ← faciō
Latin afficiō ← faciō
Latin assuefacio ← faciō
Latin calefaciō ← faciō
Latin clārificus ← faciō
Latin commonefaciō ← faciō
Latin cōnficiō ← faciō
Latin dēficiō ← faciō
Latin disfaciō ← faciō
Latin efficiō ← faciō
Latin facessō ← faciō
Latin facibilis ← faciō
Latin facienda ← faciō
Latin faciēs ← faciō
Latin facilis ← faciō
Latin facinus ← faciō
Latin factiō ← faciō
Latin factitō ← faciō
Latin factor ← faciō
Latin factūra ← faciō
Latin factus ← faciō
Latin fortificō ← faciō
Latin frīgefactō ← faciō
Latin īnficiō ← faciō
Latin interficiō ← faciō
Latin iūstificō ← faciō
Latin labefaciō ← faciō
Latin liquefaciō ← faciō
See all derived words →

Pronunciation

  • /ɛ̃.paʁ.fɛ/[1]

Forms

imparfait (feminine imparfaite, masculine plural imparfaits, feminine plural imparfaites)[1]

Etymology

It is borrowed from Latin imperfectus (“unfinished, incomplete, imperfect”), adapted after parfait.[2][3][4] The Latin adjective is formed from in- (“not”) and perfectus (“completed”), the past participle of perficiō (“to complete”), from per- and faciō (“to do, make”).[5][6] Bloch and Wartburg give it simply as a borrowing of the Latin word.[7]

The grammatical noun has a separate history: the phrase prétérit imparfait renders the grammarians' Late Latin praeteritum imperfectum (3rd century), Medieval Latin preteritum imperfectum (13th century), and the noun is that phrase shortened.[2] Rey sees it as the adjective made a noun, matching Latin imperfectum.[3]

Earliest recorded meaning

It is first found in Nicole Oresme's translation of Aristotle's Ethics (1370–1372), meaning “not perfect”: l'abit est imparfait et n'a pas sa perfeccion naturele (“the habit is imperfect and lacks its natural perfection”).[2] Rey notes that this first sense was often measured against a divine absolute.[3]

Semantic evolution

In 1372 Jean Corbichon used it for “unfinished, incomplete”, a sense that is now rare.[2][3] By the end of the 14th century, in Eustache Deschamps, it meant “having faults or gaps”, which is the common sense today, also in music, botany and zoology.[2][3] Ronsard made it a neuter noun in 1550, l'imparfait “what is imperfect”, a rare use.[2][3]

In grammar the adjective first qualified a tense, prétérit imparfait (14th–15th century), then passé imparfait (about 1543) and temps imparfait (1596); the noun alone is found in 1606 in Jean Masset's grammar.[2][7][3]

Timeline

  • 1370–1372 – Oresme uses it for “not perfect”.[2]
  • 1372 – Jean Corbichon uses it for “unfinished”.[2][5]
  • Late 14th century – Deschamps uses it for “having faults”.[2]
  • 14th century – Prétérit imperfet appears as a grammatical term.[2]
  • 1550 – Ronsard uses l'imparfait as a noun, “what is imperfect”.[2]
  • 1596 – Temps imparfait is recorded.[2][7]
  • 1606 – Imparfait is used alone as the name of the tense.[2][7]

Meanings

Adjective

  1. (dated) Unfinished, incomplete; of a book, missing some sheets.[2][6]
  2. Having flaws or lacking some elements or qualities; faulty.[2][8]
  3. That by its nature cannot be perfect: toute œuvre humaine est imparfaite.[8]
  4. (music) Of a chord, consonance or cadence: not perfect, as in accord imparfait.[6]
  5. (botany) Of a flower: lacking some of its organs, as in fleur imparfaite.[5][6]

Noun

  1. (grammar) The imperfect tense, a past tense of the indicative for an action that lasted or was repeated, also imparfait de l'indicatif.[2][1][9]
  2. (rare) What is imperfect.[2][3]

Word family

  • imparfaitement

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 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 Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  4. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  5. ^ a b c Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  6. ^ a b c d Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  7. ^ a b c d Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  8. ^ a b Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  9. ^ Dictionnaire de français Larousse, larousse.fr/dictionnaires/francais (accessed 2024)

Related etymologies

Cite this entry

“Imparfait.” Etymologically, 14 Nov. 2026, etymologically.com/fr/imparfait. Accessed 15 Nov. 2026.

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