Etymologically

convaincre

Etymology and origin of the French word convaincre

Confidence
Established
Formation
Borrowing
First attested
c. 1174, Guernes de Pont-Sainte-Maxence, Vie de saint Thomas Becket
Borrowed from
Latin convinco
Ultimate origin
Latin (vinco)
Etymology tree
inherited borrowed derived
Latin convinco
English convince
French convaincre

Pronunciation

  • IPA: /kɔ̃.vɛ̃kʁ/[1]

Forms

convaincre[1]

Etymology

It is borrowed from Latin convincō (“to prove guilty; to expose (an error); to prove”), adapted to the form of vaincre.[2][3][4][1] The Latin verb is formed from cum (“with”), here intensive, and vincō (“to conquer”).[3][5][6]

The Latin word also gave Occitan convencer, Spanish convencer and Italian convincere.[7]

Earliest recorded meaning

Guernes de Pont-Sainte-Maxence uses it about 1174 in his life of Thomas Becket for bringing someone to admit guilt.[2] Littré quotes a 12th-century line, se de felunie fust nuls huem convencuz “if any man were convicted of felony”.[7]

Semantic evolution

The word came in as a legal term in the Latinate construction convaincre quelqu'un de quelque chose, to prove someone guilty of something.[3] Until the 17th century it often meant simply “to demonstrate, prove”, after the Latin verb.[4] Calvin uses it in 1541 for exposing a fault or crime, a sense that has died out.[2][3]

The modern sense, bringing someone to accept something as true, is in Pascal's De l'art de persuader (1657).[2][3] The participles became adjectives in the 17th century: convaincant (1633, written convainquant in 1618) and convaincu (1677), which under the influence of conviction came to mean “full of conviction” (1823).[3][2] The legal sense survives in atteint et convaincu de, “charged with and found guilty of”.[6]

Timeline

  • c. 1174 – “To prove guilty”, in Guernes de Pont-Sainte-Maxence.[2]
  • 1541 – “To expose (a fault)”, in Calvin.[2][3]
  • 1579 – The noun conviction is borrowed, first as a legal term.[3]
  • 1633 – Convaincant “convincing”, in Corneille.[2]
  • 1657 – “To persuade (someone) of a truth”, in Pascal.[2][3]
  • 1677 – Convaincu as an adjective, in Racine's Phèdre.[2]
  • 1823 – Convaincu “full of conviction”.[2][3]

Meanings

Verb

  1. To convince, persuade: bring someone to accept a fact or an idea as true.[8][1] Convaincre quelqu'un de with an infinitive: to talk someone into doing something.[8][1]
  2. (reflexive) Se convaincre: to persuade oneself.[8]
  3. (law) To prove guilty, convict: convaincre quelqu'un de mensonge, atteint et convaincu de, charged with and found guilty of.[6][1]

Word family

  • convaincant
  • convaincu

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k 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 i j Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  4. ^ a b Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  5. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  6. ^ a b c Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  7. ^ a b Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  8. ^ a b c Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert

Related etymologies

Cite this entry

“Convaincre.” Etymologically, 18 Oct. 2026, etymologically.com/fr/convaincre. Accessed 18 Oct. 2026.

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