Etymologically

Etymology and origin of the Spanish word obrar

Confidence
Established
Formation
Inherited
First attested
c. 1140 Cantar de mio Cid More words from the 12th century
Inherited from
Latin opero
Ultimate origin
Proto-Indo-European *h₃ep-

Pronunciation

  • /oˈbɾaɾ/, [oˈβ̞ɾaɾ][1]

Forms

obrar (first-person singular present obro, first-person singular preterite obré, past participle obrado)[1]

Etymology

It is inherited from Late Latin operāre (“to work”), the active form that replaced operor (“to work, busy oneself”) in Late Latin.[1][2][3][4][5] The Latin verb is derived from opus (“work”), or from opera (“work, labour”).[5][6][7] operar is the learned doublet, recorded from 1737.[5][1]

The same Latin verb is Portuguese obrar, Catalan obrar, Occitan obrar, French ouvrer and Italian operare.[8][1] The noun goes back to Proto-Italic *opes- and Proto-Indo-European *h₃ep-os (“work”).[7]

Earliest recorded meaning

Corominas dates the verb to about 1140, the Cantar de mio Cid, known from a 14th-century copy.[5][9] There the participle describes the Moorish tents the Cid has won: tanto tendal obrado, “so many worked tent poles”.[9][10] The Fazienda de Ultra Mar of the early 13th century has the infinitive.[10][11]

Semantic evolution

In Old Spanish obrar meant “to work, make”, and also “to carry out” something immaterial;[12][13] Alfonso X's Lapidario uses it of stones whose powers “work” an effect, and of making a carved object.[14] The Diccionario de Autoridades added the sense said of medicines that take effect, and “to empty the bowels”.[15] The legal and office sense “to be held, be on file”, as in obra en poder del juez, was added by Salvá in 1846 and by the Academy in 1869.[12][13] Today the general verb of doing is hacer, and obrar is literary for “to act, behave” (obrar con prudencia).[16][17]

Timeline

  • c. 1140 – the Cantar de mio Cid has the participle obrado.[5][9]
  • c. 1211–1235 – the Fazienda de Ultra Mar uses the infinitive.[10][11]
  • 1250–1279 – Alfonso X's Lapidario uses it for “to take effect” and for building.[14]
  • c. 1495 – Nebrija gives Latin operor as its equivalent.[18]
  • 1533 – first record from the Americas, in Cartagena.[19]
  • 1726–1739 – the Diccionario de Autoridades records the medical sense and “to empty the bowels”.[15]
  • 1869 – the Academy's dictionary adds “to be held (in someone's keeping)”.[13]

Meanings

Verb

  1. (transitive) To make or work at something.[4]
  2. (transitive) To carry out something immaterial: La fe puede obrar milagros.[4][1]
  3. (transitive) To build.[4]
  4. (intransitive) To act, behave: Hay que obrar con cuidado.[1][16]
  5. (intransitive) Of a thing: to take effect.[4]
  6. (intransitive, euphemistic) To defecate.[4]
  7. (intransitive) Of a thing: to be held somewhere: El informe obra en poder del notario.[4]

Word family

  • obrada
  • reobrar

Usage notes

Capacidad de obrar is the legal capacity to act.[4][1]

References

  1. ^ a b c d e f g h Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ Bénaben, Michel (2000), Dictionnaire étymologique de l'espagnol, Paris: Ellipses, p. s.v. obrar
  3. ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. s.v. operare
  4. ^ a b c d e f g h 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. obrar
  5. ^ a b c d e Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. obrar
  6. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. operor
  7. ^ a b de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  8. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 6071
  9. ^ a b c Real Academia Española (2013–), Corpus del Diccionario histórico de la lengua española (CDH), version 3.1, https://apps.rae.es/CNDHE, p. s.v. obrar
  10. ^ a b c Diccionario del Español Medieval electrónico (DEMel), data publication 2026 (CC BY-SA), Universität Rostock, p. s.v. obrar
  11. ^ a b Hispanic Seminary of Medieval Studies (2026), Old Spanish Textual Archive (OSTA): semi-paleographic transcriptions of Old Spanish texts, ed. Francisco Gago Jover et al., https://www.hispanicseminary.org, p. s.v. obrar
  12. ^ a b Salvá, Vicente (1846), Nuevo diccionario de la lengua castellana, París: Librería de Don Vicente Salvá, p. 761
  13. ^ a b c Real Academia Española (1869), Diccionario de la lengua castellana, 11th ed., Madrid: Imprenta de Don Manuel Rivadeneyra, p. 545
  14. ^ a b Kasten, Lloyd A.; Nitti, John J.; Gago Jover, Francisco (2002–), Diccionario de la prosa castellana del Rey Alfonso X, New York: Hispanic Seminary of Medieval Studies (electronic edition 2024), p. s.v. obrar
  15. ^ a b Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 5, 7
  16. ^ a b Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. obrar
  17. ^ Battaner Arias, Paz (dir.) (2017), Diccionario general de la lengua española VOX, Barcelona: Larousse Editorial, p. s.v. obrar
  18. ^ Nebrija, Antonio de (1513), Vocabulario español-latino, Salamanca, ed. Marina Vidal Díez (2007), Biblioteca Virtual Miguel de Cervantes, p. 388
  19. ^ Boyd-Bowman, Peter (2003), Léxico hispanoamericano 1493–1993, ed. Ray Harris-Northall and John J. Nitti, New York: Hispanic Seminary of Medieval Studies, p. s.v. obrar

Related etymologies

Cite this entry

“Obrar.” Etymologically, 14 Nov. 2026, etymologically.com/es/obrar. Accessed 14 Nov. 2026.

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