Etymologically

Etymology and origin of the Portuguese word obrar

Confidence
Established
Formation
Inherited
First attested
1200s Cantigas de Santa Maria More words from the 13th century
Inherited from
Latin opero
Ultimate origin
Latin operor

Pronunciation

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

Forms

obrar (first-person singular present obro, first-person singular preterite obrei, past participle obrado)[1] Houaiss records the 14th-century spellings hobrar and obraades.[2]

Etymology

It is inherited from Late Latin operō (“to work”), the active form of Latin operor (“to be at work”).[2][3][1] The learned verb operar is a doublet from the same Latin word.[2][1]

The same Latin verb is Galician obrar, Spanish obrar, Catalan obrar, Occitan obrar, French ouvrer and Italian operare.[4][5]

The Oxford Latin Dictionary derives the deponent verb from opera (“work, effort”) or explains it as a back-formation from its participle operātus.[6] Wiktionary prefers the back-formation.[1] Niermeyer records the active form beside the deponent in Medieval Latin, with the senses “to perform labour service”, “to act”, “to manufacture” and “to build”.[7]

Earliest recorded meaning

Lorenzo's chronology dates the first records, with a query, to the 13th century, in the Cantigas de Santa Maria: cuidando ben obrar “thinking to do well”, and se ben obrou por ela “if he did well for her”.[8] In the Cancioneiro da Ajuda Pero da Ponte says of the king who conquered Valencia that per valença quer obrar “he means to act with valour”.[8][9] The sense is “to act, to perform deeds”.[8]

Semantic evolution

Houaiss dates the intransitive sense “to work, to act” to the 13th century and the transitive “to bring about, to make” to the 14th.[2] The Crónica Troiana uses the verb for working on something and for accomplishing things.[8] Cardoso in 1569 and Pereira in 1697 render it with Latin operor.[10][11] Bluteau defines it as doing any action, and his quotations show it with adverbs of manner, obrar com violencia, obrar com destreza.[12]

The medical sense came early: Folqman's dictionary of 1755 has obrar bem com hum remedio for a purge that moves the bowels.[13] From “to take effect (of a medicine)” the verb came to mean “to defecate”, now popular or euphemistic in Portugal and Brazil.[2][14][15] Portuguese dialect surveys also record “to build one's own house” and, of olive oil, “to separate from the dregs”.[16]

Timeline

  • 13th century – obrar in the Cantigas de Santa Maria.[8][3]
  • 14th century – the spellings hobrar and obraades; first date of the transitive sense “to bring about”.[2]
  • c. 1400 – in a fragment of the Flos Sanctorum (witness 1380–1425).[17]
  • 1569 – Cardoso glosses obrar as Latin operor.[10]
  • 1712–1728 – Bluteau defines it as doing any action.[12]
  • 1755 – Folqman records the verb of a medicine that moves the bowels.[13]

Meanings

Verb

  1. (intransitive) To work, to carry out a task or trade; to act: Ele obra com cuidado.[2][18][1]
  2. (transitive) To bring about, accomplish or produce: obrar maravilhas.[2][18]
  3. (transitive) To build or manufacture.[2][19]
  4. (transitive) To plot or contrive (a crime, an intrigue).[2][20]
  5. (intransitive) To behave, to act in a certain way.[2][21]
  6. (intransitive, + sobre) To have influence over someone.[2][14]
  7. (intransitive) To take effect (of a medicine).[2][18]
  8. (intransitive, popular) To defecate;[2][22][1] (pronominal) to soil oneself.[2][22][1]

References

  1. ^ a b c d e f g h i j k Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. obrar
  3. ^ a b Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. obra
  4. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. s.v. operare
  5. ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. s.v. operare
  6. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. operor
  7. ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill, p. s.v. operari
  8. ^ a b c d e Instituto da Lingua Galega, Dicionario de dicionarios do galego medieval (DDGM), ed. Ernesto González Seoane, Santiago de Compostela: Universidade de Santiago de Compostela, https://ilg.usc.gal/ddgm, p. s.v. obrar
  9. ^ Universo Cantigas: Glosario da poesía medieval profana galego-portuguesa, A Coruña: Instituto da Lingua e Literatura (ILLA), Universidade da Coruña, https://www.universocantigas.gal, p. s.v. obrar
  10. ^ a b Cardoso, Jerónimo (1569–1570), Dictionarium ex lusitanico in latinum sermonem, Lisboa: João Álvares (CLP transcription, Universidade de Aveiro), p. s.v. obrar
  11. ^ 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. obrar
  12. ^ a b Bluteau, Raphael (1712–1728), Vocabulario portuguez e latino, 8 vols. + 2 supplement vols., Coimbra / Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. obrar
  13. ^ a b Folqman, Carlos (1755), Diccionario portuguez, e latino, Lisboa: Régia Officina Silviana (CLP transcription, Universidade de Aveiro), p. s.v. obrar
  14. ^ a b 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. obrar
  15. ^ Schlee, Aldyr Garcia (2019), Dicionário da Cultura Pampeana Sul-Rio-Grandense, 2 vols., Pelotas: Fructos do Paiz, p. s.v. obrar
  16. ^ Instituto da Lingua Galega, Tesouro do léxico patrimonial galego e portugués (TLPGP), Santiago de Compostela: Universidade de Santiago de Compostela, https://ilg.usc.gal/tesouro, p. s.v. obrar
  17. ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. obrar
  18. ^ a b c Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. obrar
  19. ^ Porto Editora (2013), Grande Dicionário da Língua Portuguesa, Porto: Porto Editora, p. 6603
  20. ^ 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. obrar
  21. ^ 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. obrar
  22. ^ a b Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. obrar

Related etymologies

Cite this entry

“Obrar.” Etymologically, 15 Nov. 2026, etymologically.com/pt/obrar. Accessed 16 Nov. 2026.

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