Etymologically

Etymology and origin of the Spanish word opinar

Confidence
Established
Formation
Borrowing
First attested
1377–1399 Juan Fernández de Heredia, translation of Eutropius More words from the 14th century
Borrowed from
Latin opinor
Ultimate origin
Latin opīnor
Etymology tree
inherited borrowed derived
Latin opīnor
Spanish opinar
From the same root
Latin opīniō ← opīnor

Pronunciation

  • /opiˈnaɾ/, [o.piˈnaɾ][1]

Forms

opinar (first-person singular present opino, first-person singular preterite opiné, past participle opinado)[1]

Etymology

It is borrowed from Latin opīnor (“to think, believe, suppose”), a deponent verb.[2][3][1][4] Early Latin also had an active opīnō, in Plautus and Ennius, and the Academy's 1884 edition gives that active infinitive as the source.[5][6] Corominas treats the verb under opinión.[3]

The Latin verb is formed on an adjective seen in inopīnus (“unexpected”), whose origin is unclear.[1] It is traditionally connected with optō (“to choose, wish”) and Proto-Indo-European *op- (“to choose”), as Gómez de Silva does, but Schrijver finds the link between “choose” and “believe” weak.[7][1][8] Vine points out that a Praenestine inscription spells it opeinor, with a diphthong that makes the analysis harder.[7][1]

The same learned verb is Portuguese opinar, Catalan opinar, French opiner and Italian opinare.[1] In Portuguese it is recorded from the 17th century.[9]

Earliest recorded meaning

The earliest CDH hit is the participle in Juan Fernández de Heredia's translation of Eutropius (1377–1399): espauorido por sobtosa et no opinada sobreuienta, “terrified by a sudden and unexpected attack”.[10] Enrique de Villena's Arte cisoria (1423) uses the gerund opinando, “supposing”.[10] Corominas dates the verb to 1495, Nebrija's Vocabulario, and DICCA-XV to 1417.[3][4]

Semantic evolution

Nebrija's Latin dictionary of 1492 glosses opinor as “to think with opinion”, and his Spanish–Latin Vocabulario has opinar for it.[4] In the 15th century Hernando del Pulgar also used it for “to deem”: Muchos de los que opinamos de noble sangre veemos pobres, “many of those whom we deem of noble blood we see poor”.[10] The Diccionario de Autoridades made it intransitive, “to reason or judge with probability about a matter”.[11] A Guatemalan text of 1716 has the passive fue generalmente opinado que …, “it was generally thought that …”.[12] The DLE now gives transitive and intransitive senses, to hold and to express an opinion.[2] Moliner notes that a speaker gives an opinion with this very verb in the first person: opino que ….[13]

Timeline

  • 1377–1399 – first record in the CDH, the participle opinada in Fernández de Heredia.[10]
  • 1417 – first record in DICCA-XV.[4]
  • 1423 – Enrique de Villena uses opinando.[10]
  • 1438 – first record of inopinado.[3]
  • 1495 – the date Corominas gives, in Nebrija's Vocabulario.[3][14]
  • 1716 – first record from the Americas, in Guatemala.[12]
  • 1726–1739 – the Diccionario de Autoridades defines it as an intransitive verb.[11]
  • 1884 – the Academy defines it as forming a judgement about a doubtful matter.[6]

Meanings

Verb

  1. (transitive) To think, to be of the opinion: Opino que deberíamos esperar.[2][1][13]
  2. (transitive) To express an opinion, to opine.[2][1]
  3. (intransitive) To have an opinion of someone or something: ¿Qué opinas de la película?[2]
  4. (intransitive) To give one's opinion: Nadie quiso opinar en la reunión.[2][13]

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 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. opinar
  3. ^ a b c d e Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. opinión
  4. ^ a b c d Lleal, Coloma (dir.), DICCA-XV: Diccionario del castellano del siglo XV en la Corona de Aragón, Barcelona: Universitat de Barcelona, Grup d'Estudis d'Història de la Llengua (GHCL), https://ghcl.ub.edu/diccaxv, p. s.v. opinar
  5. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  6. ^ a b Real Academia Española (1884), Diccionario de la lengua castellana, 12th ed., Madrid: Imprenta de D. Gregorio Hernando (the first Academy edition with etymologies), p. 761
  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. ^ Gómez de Silva, Guido (1988), Breve diccionario etimológico de la lengua española, México: Fondo de Cultura Económica / El Colegio de México, p. s.v. opinar
  9. ^ Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. 2400
  10. ^ a b c d e Real Academia Española (2013–), Corpus del Diccionario histórico de la lengua española (CDH), version 3.1, https://apps.rae.es/CNDHE, p. s.v. opinar
  11. ^ a b Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 5, 42
  12. ^ a b 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. opinar
  13. ^ a b c Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. opinar
  14. ^ 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

Related etymologies

Cite this entry

“Opinar.” Etymologically, 7 Nov. 2026, etymologically.com/es/opinar. Accessed 7 Nov. 2026.

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