Etymologically

Etymology and origin of the Portuguese word recusar

Confidence
Established
Formation
Borrowing
First attested
1300s More words from the 14th century
Borrowed from
Latin recuso
Ultimate origin
Latin causa
Etymology tree
inherited borrowed derived
Latin causa
French chose
Italian cosa
Portuguese coisa
Spanish cosa
French cause
Italian causa
Old French cause
English cause
Romanian cauză
Latin recūsō
English recuse
Portuguese recusar
Spanish recusar
From the same root
Latin accūsō ← causa
Latin causālis ← causa
Latin causidicus ← causa
Latin causō ← causa
Latin causor ← causa
Latin excūsō ← causa
Latin incūsō ← causa
Spanish acusar ← causa
Italian coso ← cosa
Italian qualcosa ← cosa
French causer ← cause
English because ← cause
Latin recūsātiō ← recūsō

Pronunciation

  • Brazil: /ʁe.kuˈza(ʁ)/, [he.kuˈza(h)][1]
  • São-Paulo: /ʁe.kuˈza(ɾ)/, [he.kuˈza(ɾ)][1]
  • Rio-de-Janeiro: /ʁe.kuˈza(ʁ)/, [χe.kuˈza(χ)][1]
  • Caipira: /ʁe.kuˈza(ɻ)/, [he.kuˈza(ɻ)][1]

Forms

recusar (first-person singular present recuso, first-person singular preterite recusei, past participle recusado)[1] Houaiss's historical forms include refusase (15th century) and refusar (1563); refusar survives as a rare synonym.[2][3] Morais (1813) and Vieira still define recusar by refusar.[4][5]

Etymology

It is borrowed from Latin recūsō (“to object, to refuse”), a learned word.[2][6][1][7] The Latin verb is formed from re- and causa (“cause, case”), and was first a legal term, “to put in an objection”.[8][1]

The Latin word is also Galician recusar, Spanish recusar, Catalan recusar and Italian ricusare.[1][9] In French it lost its -c- and gave the popular French ruser.[1]

Earliest recorded meaning

Houaiss and Cunha date it to the 14th century, with the sense “to reject, not accept”.[2][6] The Livro dos Mártires of 1513 has it.[10]

Semantic evolution

Bluteau's examples are all of declining an offer: an office, an embassy, a title, a just condition.[11] Morais (1813) adds the legal recusar o juiz “to reject a judge as biased”, from the Ordenações.[4] Aulete records the senses “to refuse to grant” and, with an infinitive, “to refuse to do”.[12] In law it now also means to reject a witness, and reflexively to stand down from a case.[2][1]

Timeline

  • 14th century – first records.[2][6]
  • 15th century – first record of recusação.[6]
  • 1513 – recusar in the Livro dos Mártires.[10]
  • 1592 – Recuso in a private letter.[13]
  • 1813 – Morais records recusar o juiz; first record of recusante.[4][6]
  • 1836 – irrecusável and recusável in Constâncio's dictionary.[6]
  • 1858 – first record of the noun recusa.[6]

Meanings

Verb

  1. To refuse, decline, not to accept what is offered: Recusou o convite para jantar.[2][14][1]
  2. To deny, not to grant what is asked: recusar ajuda a alguém.[2][3]
  3. (reflexive) To refuse (to do something): recusou-se a responder.[2][3]
  4. Not to admit or accept;[2][4][1] (law) to object to a judge or a witness, to recuse.[2][4][1]
  5. (law, reflexive) To stand down from a case.[1]

Word family

  • recusa
  • recusação
  • recusante
  • recusável
  • irrecusável

References

  1. ^ a b c d e f g h i j k l m n Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. recusar
  3. ^ a b c Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. recusar
  4. ^ a b c d e Silva, António de Morais (1813), Diccionario da lingua portugueza, 2nd ed., 2 vols., Lisboa: Typographia Lacerdina, p. 2, 572
  5. ^ Vieira, Frei Domingos (1871–1874), Grande Diccionario Portuguez ou Thesouro da lingua portugueza, 5 vols., Porto: Ernesto Chardron e Bartholomeu H. de Moraes, p. 5, 139
  6. ^ 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. recusar
  7. ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. recusar
  8. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. recuso
  9. ^ 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. recusar
  10. ^ a b Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. recusar
  11. ^ Bluteau, Raphael (1712–1728), Vocabulario portuguez e latino, 8 vols. + 2 supplement vols., Coimbra / Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. recusar
  12. ^ 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. recusar
  13. ^ CLUL (ed.) (2014), P.S. Post Scriptum: Arquivo Digital de Escrita Quotidiana em Portugal e Espanha na Época Moderna, Lisboa: Centro de Linguística da Universidade de Lisboa, http://ps.clul.ul.pt, p. s.v. recusar
  14. ^ Academia das Ciências de Lisboa, Dicionário da Língua Portuguesa, revised online edition (2023–) of the Dicionário da Língua Portuguesa Contemporânea (2001), https://dicionario.acad-ciencias.pt, p. s.v. recusar

Related etymologies

Cite this entry

“Recusar.” Etymologically, 15 Nov. 2026, etymologically.com/pt/recusar. Accessed 16 Nov. 2026.

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