Etymology and origin of the Portuguese word escuro
- Confidence
- Established
- Formation
- Inherited
- First attested
- 1200s More words from the 13th century
- Inherited from
- Latin obscurus
- Ultimate origin
- Latin obscūrus
Etymology tree
From the same root
Pronunciation
Forms
escuro (feminine escura, masculine plural escuros, feminine plural escuras, comparable, comparative mais escuro, superlative o mais escuro or escuríssimo, diminutive escurinho)[1]
Etymology
It is inherited from Latin obscūrus (“dark”), by the popular route, written Old Galician-Portuguese escuro, Old Galician-Portuguese scuro and Old Galician-Portuguese oscuro in the old language.[2][3][1] The learned form of the same Latin word is obscuro.[2][1]
Nascentes and Aurélio describe the change of the first syllable as a change of prefix.[4][5] Nascentes lists three explanations of the lost ⟨b⟩: Menéndez Pidal saw the pull of Latin words beginning with ⟨sc-⟩, such as scrībō (“to write”);[6] Nunes also thought of analogy;[6] Cornu put it down to the following sibilant.[6]
The same Latin word is Galician escuro, Spanish oscuro, Occitan escur, French obscur and Italian scuro.[1][7] Castilian, too, long preferred Old Spanish escuro, the only form in Cervantes's Quixote, and the form with ⟨o-⟩ gained ground under Latin influence in the Golden Age.[8]
Wiktionary analyses the Latin word as ob- and a *scūrus (“dark”), from Proto-Italic *skoiros and Proto-Indo-European *(s)ḱeh₃i-, comparing Old Irish cíar (“dark”).[1] De Vaan thinks the first meaning was “darkened, covered”, notes that the division of the word is disputed, and gives his Proto-Indo-European reconstruction with a question mark.[9]
Earliest recorded meaning
Houaiss and Cunha date the adjective to the 13th century.[2][3] The Cantigas de Santa Maria speak of a dark night falling (a noit'escura se fez) and of a dark prison (a carcer escura); the Crónica Troiana has a man who could see at night, however dark it was, as at midday, and a storm “ugly, dark and frightful” (fea et escura et pauorosa).[10]
Semantic evolution
The derivatives escurecer “to darken” (13th century), escuridão, escuridade and escureza (14th century) show the word in full use in the medieval language.[3] Folqman (1755) has questão muito escura “a very obscure question”.[11] Morais (1813) records azul escuro “dark blue”, dia escuro “an overcast day”, thoughts that are hard to understand and, figuratively, sad ones.[12] Figueiredo (1899) adds “of low birth” and “faint, hard to hear or make out”.[13]
As a noun, escuro is darkness or a dark place, and no escuro is used of people left without knowledge.[2] In Brazil it is also used of a Black or mixed-race person.[2][14] In Rio Grande do Sul os escuros was a nickname for 19th-century politicians who always wore black.[15] The word passed into Saramaccan as sugúu.[1]
Timeline
- 13th century – first records;[2][3] escurecer also dates from this century.[2][3]
- 14th century – escuridão, escuridade and escureza;[3] scuricimento in the Horto do Esposo.[3]
- 15th century – the spelling scuro.[2]
- c. 1430 – the earliest record in the CTA prose corpus, the Horto do Esposo (witness 1390–1437).[16]
- 1697 – Pereira glosses the noun with Latin tenebrae “darkness”.[17]
- 1755 – Folqman's questão muito escura.[11]
- 1813 – Morais records azul escuro and dia escuro.[12]
- 1899 – Figueiredo calls it an alteration of obscuro.[13]
Meanings
Adjective
- dark; with little or no light: Entrou num corredor escuro.[2][5][1]
- Of a colour: deep, close to black: verde escuro.[2][5]
- Of the sky or the day: overcast.[18][12]
- (figurative) Sad, gloomy.[2]
- (figurative) Surrounded by suspicion; shady.[2][19]
- (figurative) Hard to understand, obscure (obscuro).[2][20]
- Hard to hear or make out; faint.[2][13]
- (dated) Of humble birth.[13][19]
Noun
Word family
- escurecer
- escurecimento
- escuridão
- escuridade
- escureza
- escurentar
Related words
Usage notes
No escuro, like às escuras, also means “without knowledge, in ignorance”.[2]
References
- ^ a b c d e f g h i j k Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k l m n o p q Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. escuro
- ^ 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. escuro
- ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. escuro
- ^ a b c Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. escuro
- ^ a b c Nascentes, Antenor (1955), Dicionário etimológico da língua portuguesa, vol. 1: Nomes comuns, Rio de Janeiro (1st ed. 1932, preface by W. Meyer-Lübke), p. 187
- ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. s.v. obscurus
- ^ Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 4, 318
- ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ 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. escuro
- ^ a b Folqman, Carlos (1755), Diccionario portuguez, e latino, Lisboa: Régia Officina Silviana (CLP transcription, Universidade de Aveiro), p. s.v. escuro
- ^ a b c Silva, António de Morais (1813), Diccionario da lingua portugueza, 2nd ed., 2 vols., Lisboa: Typographia Lacerdina, p. 1, 746
- ^ a b c d Figueiredo, Cândido de (1899), Novo diccionário da língua portuguesa, 1st ed., 2 vols., Lisboa: Tavares Cardoso & Irmão, p. 542
- ^ 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. escuro
- ^ Schlee, Aldyr Garcia (2019), Dicionário da Cultura Pampeana Sul-Rio-Grandense, 2 vols., Pelotas: Fructos do Paiz, p. s.v. escuro
- ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. escuro
- ^ 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. escuro
- ^ Porto Editora (2013), Grande Dicionário da Língua Portuguesa, Porto: Porto Editora, p. 3818
- ^ a b 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. escuro
- ^ Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. escuro
Related etymologies
Cite this entry
“Escuro.” Etymologically, 15 Nov. 2026, etymologically.com/pt/escuro. Accessed 16 Nov. 2026.
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