Etymologically

Etymology and origin of the Portuguese word convencer

Confidence
Established
Formation
Inherited
First attested
1369 spelt conuencer More words from the 14th century
Inherited from
Latin convinco
Ultimate origin
Latin vincō
Etymology tree
inherited borrowed derived
Latin vincō
French vaincre
Italian vincere
Portuguese vencer
Spanish vencer
Latin convincō
Portuguese convencer
English convince
French convaincre
Romanian convinge
Italian convincere
Spanish convencer
From the same root
English vanquish ← vincō
Latin dēvincō ← vincō
Latin ēvincō ← vincō
Latin pervicāx ← vincō
Latin pervincō ← vincō
Latin revincō ← vincō
Latin victor ← vincō
Romanian învinge ← vincō
Italian vincitore ← vincere
Portuguese vencedor ← vencer
Latin convictiō ← convincō
Romanian convingător ← convinge
Romanian convingere ← convinge
Italian convinto ← convincere

Pronunciation

  • Brazil: /kõ.vẽˈse(ʁ)/, [kõ.vẽˈse(h)][1]
  • São-Paulo: /kõ.vẽˈse(ɾ)/[1]
  • Rio-de-Janeiro: /kõ.vẽˈse(ʁ)/, [kõ.vẽˈse(χ)][1]
  • Caipira: /kõ.vẽˈse(ɻ)/[1]

Forms

convencer (first-person singular present convenço, first-person singular preterite convenci, past participle convencido)[1] The first record of 1369 is spelt conuencer.[2] Feijó (1734) gives convencer as the correct form, against convincer.[3]

Etymology

It is inherited from Latin convincō (“to overcome; to prove guilty”), recorded from 1369 as Old Galician-Portuguese conuencer.[2][4][1] Nascentes calls it a semi-learned word.[5] The Latin verb is formed from con- and vincō (“to conquer, win”).[6][1]

The same Latin word is Spanish convencer, Catalan convèncer, French convaincre, Italian convincere and Romanian convinge.[1][7] The French verb was taken from Latin about 1174 and reshaped after vaincre.[8]

De Vaan traces the Latin verb to a stem Proto-Italic *wink- (“to tie, bind”), which came to mean “tie in, overcome”, from a nasal present Proto-Indo-European *u̯i-n-k- (“to bend, tie”).[9]

Earliest recorded meaning

Houaiss dates the first record, spelt conuencer, to 1369, and Cunha places the verb in the 14th century with the sense “to persuade”.[2][4] The Horto do Esposo, in a copy of about 1390–1437, has one example.[10]

Semantic evolution

Barbosa (1611) glosses the verb with Latin convinco and Cicero's phrases on overcoming an opponent with authorities and witnesses, and Pereira (1697) adds confuto “to refute”.[11][12] Morais (1813) defines it as persuading with arguments that admit no answer, and convencer alguém de furto as proving a theft against someone so that he can say nothing in his defence.[13] Vieira quotes Francisco Rodrigues Lobo's Corte na Aldeia, where a go-between “persuades, advises and convinces like an orator”.[14]

The legal sense has faded, and modern Portuguese uses the verb for persuading someone or oneself, and, of a performance or a team, for winning over the audience.[2][15] Cunha dates the noun convencimento, in the spelling conujnzimento, to the 13th century, and the adjectives convencido and convincente to the 19th.[4]

Timeline

  • 1369 – first record, spelt conuencer.[2]
  • c. 1390–1437 – an example in the Horto do Esposo.[10]
  • 1611 – Barbosa glosses it with Latin convinco.[11]
  • 1734 – Feijó prescribes convencer, not convincer.[3]
  • 1813 – Morais records convencer alguém de furto.[13][4] Cunha dates convicção to the same year.[13][4]
  • 1836 – first date for convencido.[4]
  • 1844 – first date for convincente.[4]

Meanings

Verb

  1. To convince, persuade (someone, or oneself) to accept an idea or a fact through arguments or evidence: O professor convenceu os alunos a estudar mais.[2][16][1]
  2. To bring someone to accept a reality: convencer alguém de followed by the fact.[2][15]
  3. (intransitive) To be convincing; to win over an audience or critics through the force of a performance.[2][15]
  4. (reflexive) To become sure of something, to be persuaded.[16][17]
  5. (law, dated) To prove someone guilty: convencer de furto.[13][14]

Word family

  • convencido
  • convencimento

References

  1. ^ a b c d e f g h i Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. convencer
  3. ^ a b Feijó, João de Morais Madureira (1734), Orthographia, ou Arte de escrever, e pronunciar com acerto a lingua portugueza, Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. convencer
  4. ^ a b c d e f g Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. convencer
  5. ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. convencer
  6. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. conuincō
  7. ^ Real Academia Española; Asociación de Academias de la Lengua Española (2014–), Diccionario de la lengua española, 23rd ed., online version 23.8, https://dle.rae.es, p. s.v. convencer
  8. ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. convaincre
  9. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill, p. s.v. vincō
  10. ^ a b Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. convencer
  11. ^ a b Barbosa, Agostinho (1611), Dictionarium lusitanicolatinum, Braga: Fructuoso Lourenço de Basto (CLP transcription, Universidade de Aveiro), p. s.v. convencer
  12. ^ Pereira, Bento (1697), Thesouro da lingoa portuguesa, in the 1697 edition of his Prosodia (1st ed. 1647; CLP transcription, Universidade de Aveiro), p. s.v. convencer
  13. ^ a b c d Silva, António de Morais (1813), Diccionario da lingua portugueza, 2nd ed., 2 vols., Lisboa: Typographia Lacerdina, p. 1, 465
  14. ^ a b Vieira, Frei Domingos (1871–1874), Grande Diccionario Portuguez ou Thesouro da lingua portugueza, 5 vols., Porto: Ernesto Chardron e Bartholomeu H. de Moraes, p. 2, 492
  15. ^ a b c Aulete, Francisco Júlio Caldas, Dicionário contemporâneo da língua portuguesa (1st ed. 1881), online as Aulete Digital, Rio de Janeiro: Lexikon, https://aulete.com.br, p. s.v. convencer
  16. ^ a b Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. convencer
  17. ^ Michaelis: Moderno Dicionário da Língua Portuguesa, São Paulo: Melhoramentos (online as Michaelis Dicionário Brasileiro da Língua Portuguesa, https://michaelis.uol.com.br), p. s.v. convencer

Related etymologies

Cite this entry

“Convencer.” Etymologically, 15 Nov. 2026, etymologically.com/pt/convencer. Accessed 16 Nov. 2026.

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