Etymology and origin of the Portuguese word oportuno
- Confidence
- Established
- Formation
- Borrowing
- First attested
- 1587 before 1587, spelt opportuno More words from the 16th century
- Borrowed from
- Latin opportunus
- Ultimate origin
- Latin portus
Etymology tree
From the same root
Pronunciation
Forms
oportuno (feminine oportuna, masculine plural oportunos, feminine plural oportunas)[1] The older spelling was opportuno, that of the first record, of Bluteau and of Morais;[2][3][4][1] Wiktionary lists it as obsolete.[2][3][4][1]
Etymology
It is borrowed from Latin opportūnus (“convenient, suitable”), first recorded before 1587 in the old spelling with double p.[2][5][1] Nascentes calls it a learned word.[6]
The Latin adjective is probably formed from ob- (“towards”) and portus (“harbour”), and was first a sailors' word for a wind or current that carries a ship towards the harbour.[7][8][9] Houaiss instead links it with Portūnus, the god of harbours.[2] The OLD compares importūnus.[7]
The same Latin word is Spanish oportuno, Galician oportuno and Italian opportuno, and French opportun was taken from it in 1355.[10][11][1][12]
Earliest recorded meaning
Houaiss's first record, from before 1587, has the spelling opportuno;[2][5] Cunha dates the feminine opportuna to the 16th century.[2][5] The sense was already the general one, “coming at the right time, fitting”, which the Latin word had in classical prose.[2][7]
Semantic evolution
Bluteau (1712–1728) defines opportuno as suitable, favourable, fitted to the time, and quotes tempo opportuno.[3] Morais (1789) gives “coming or done at the right time, when it is fitting”, with examples of help, rain, and a time and place fit for dressing wounds.[4] The modern dictionaries keep these senses and add that of a person who says or does the right thing at the right moment.[13][2]
From the adjective come the negative inoportuno, recorded in 1873 as inopportuno, and in the 19th century oportunismo and oportunista.[5]
Timeline
- before 1587 – first record, spelt opportuno.[2]
- 16th century – Cunha's date for the word, with the form opportuna.[5]
- 1712–1728 – Bluteau defines opportuno.[3]
- 1789 – Morais heads the word opportuno.[4]
- 1873 – Cunha's first record of inopportuno.[5]
Meanings
Adjective
- opportune: coming or done at the right time or to the purpose; appropriate: Escolheu um momento oportuno para falar.[2][14][9][1]
- convenient, favourable, fit for a purpose: uma ocasião oportuna para viajar.[2][14][15]
- Bringing an advantage; useful.[2]
- Of a person: saying or doing what suits the moment.[13]
Word family
- inoportuno
- oportunismo
- oportunista
Related words
- oportunidade
- importuno
- porto
- Latin opportūnus
- Spanish oportuno
References
- ^ a b c d e f g h i j Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k l Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. oportuno
- ^ a b c d Bluteau, Raphael (1712–1728), Vocabulario portuguez e latino, 8 vols. + 2 supplement vols., Coimbra / Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. opportuno
- ^ a b c d Silva, António de Morais (1789), Diccionario da lingua portugueza composto pelo padre D. Rafael Bluteau, reformado, e accrescentado, 2 vols., Lisboa: Simão Thaddeo Ferreira, p. 2, 135
- ^ a b c d e f Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. oportuno
- ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. oportuno
- ^ a b c Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. opportūnus
- ^ Nascentes, Antenor (1955), Dicionário etimológico da língua portuguesa, vol. 1: Nomes comuns, Rio de Janeiro (1st ed. 1932, preface by W. Meyer-Lübke), p. 366
- ^ a b Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. oportuno
- ^ 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. oportuno
- ^ Estraviz, Isaac Alonso, Dicionário Estraviz, https://estraviz.org, p. s.v. oportuno
- ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. opportun
- ^ a b 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. oportuno
- ^ a b Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. oportuno
- ^ 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. oportuno
Related etymologies
Cite this entry
“Oportuno.” Etymologically, 15 Nov. 2026, etymologically.com/pt/oportuno. Accessed 16 Nov. 2026.
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