Etymology and origin of the Portuguese word céu
- Confidence
- Established
- Formation
- Inherited
- First attested
- 1200s More words from the 13th century
- Inherited from
- Latin caelum
- Ultimate origin
- Latin caelum
Etymology tree
From the same root
Forms
céu m (plural céus)[1] Old Galician-Portuguese wrote ceo and çeo, and in the 14th century also ceeo, cééo and seo;[2][3] Houaiss dates ceu to the 16th century.[2][3] The dictionaries from Cardoso (1569) to Morais (1789) still head the word Ceo or Céo.[4][5][6][7]
Etymology
It is inherited from Latin caelum (“sky, vault of heaven”), written Old Galician-Portuguese ceo in the oldest texts.[2][8][1] Houaiss also names the masculine by-form caelus.[2]
The same Latin word is Galician ceo, Spanish cielo, Catalan cel, French ciel, Italian cielo and Romanian cer.[9][1]
De Vaan traces the Latin word to Proto-Italic *kailo- “sky” and to a PIE adjective *keh₂i-lo- “whole”.[10][1] Wiktionary calls this uncertain: the word would come from the language of the augurs, the sky as “the whole” against the templum “the part”, and be related to *hailaz (“whole”), a link Kroonen rejects.[1] The DHLF mentions an older connection with caedō (“to cut”), the sky being “cut” into regions by the augurs.[11]
Earliest recorded meaning
In the 13th century the word already had both its main senses, the visible sky and the dwelling of God: the Cantigas de Santa Maria call the Virgin a Reinna do Ceo “the Queen of Heaven”, tell of a voice that came de ceo “from heaven”, and of a woman lifted contra o ceo “up towards the sky”.[3] The Crónica Troiana says that a tent looked like o çeo quando estaua ben estrelado “the sky when it was full of stars”.[12]
Semantic evolution
Bluteau (1712–1728) still describes the twelve heavens of the old cosmology, from the Empyrean, the eternal dwelling of the blessed, down to the spheres of the planets.[6] The old Caldas Aulete keeps this sense as antiquated: each of the solid, transparent spheres around the earth that the ancients imagined to explain the planets' motion.[13] Morais (1789) gives the upper air, the place of God and the blessed, a sense “region, climate” in a line of Camões, and ceo da boca “palate”.[7] Other Romance languages also name the palate after the sky, as Romanian cerul gurii does, and in Old French, Old Occitan and Spanish the word could mean “ceiling”.[9]
The Latin plural was rare before Christianity and spread to render the plural of the Greek and Hebrew Bible.[11] Portuguese uses it in Reino dos Céus and as an exclamation of surprise or pain, céus!.[1][14] In Brazil céu de brigadeiro is a clear sky with good flying weather, and céu de cabra means “hell”.[2][15]
The word passed into the Portuguese-based creoles: seu in Kabuverdianu and Guinea-Bissau Creole, ose in Sãotomense and Principense.[1]
Timeline
- 13th century – first records, spelt ceo.[2][8]
- 14th century – the spellings ceeo, cééo, çeeo and seo.[2]
- c. 1430 – ceo in the Horto do Esposo (copied 1390–1437).[16]
- 16th century – the spelling ceu appears.[2][8]
- 1569 – Cardoso's Portuguese–Latin dictionary heads the word Ceo.[4]
- 1611 – Barbosa lists Céo estrelado “starry sky” and Céo da boca “palate”.[5]
- 1712–1728 – Bluteau describes the twelve heavens of the old astronomy.[6]
- 1789 – Morais heads the word CEO.[7]
- 1878 – first record of a céu aberto “in the open air”.[2]
Meanings
Noun
- The sky as the space in which the stars and planets lie and move.[2][15][1]
- The part of that space seen from the earth and bounded by the horizon; the firmament (firmamento).[2][15]
- The atmosphere, the weather as the sky shows it: Amanhã o céu deve ficar limpo.[2][17]
- The upper, often concave part of a frame; a canopy (dossel).[2][15]
- (religion, often capitalised) heaven, the dwelling of God, the angels and the souls of the just.[2][14][1]
- Any place of happiness and harmony, a paradise; complete well-being.[2][15]
- (often plural) Divine providence;[2][17] God or the gods.[2][17]
- (mining) The roof of a vault or of an underground gallery.[18][19]
- (anatomy) In céu da boca, the palate.[2][15]
Word family
- arranha-céus
- sobrecéu
- ceuzinho
Related words
Usage notes
Fixed phrases include a céu aberto “in the open air”, also said of open-cast mining and excavation;[2] cair do céu “to come at just the right moment”;[2] mover céus e terras “to try every possible means”;[2][17] and sétimo céu “the height of happiness”.[2]
For the idea of “sky”, learned words use the prefixes cel(i)- and uran(i/o)-.[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 r s t u v w Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. céu
- ^ a b c 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. ceo
- ^ a b Cardoso, Jerónimo (1569–1570), Dictionarium ex lusitanico in latinum sermonem, Lisboa: João Álvares (CLP transcription, Universidade de Aveiro), p. s.v. ceo
- ^ a b Barbosa, Agostinho (1611), Dictionarium lusitanicolatinum, Braga: Fructuoso Lourenço de Basto (CLP transcription, Universidade de Aveiro), p. s.v. céo
- ^ a b c Bluteau, Raphael (1712–1728), Vocabulario portuguez e latino, 8 vols. + 2 supplement vols., Coimbra / Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. céo
- ^ a b c 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. 1, 254
- ^ a b c Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. céu
- ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 1466
- ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ a b Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. ciel
- ^ 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. çeo
- ^ 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. céu
- ^ a b Porto Editora (2013), Grande Dicionário da Língua Portuguesa, Porto: Porto Editora, p. 1981
- ^ a b c d e f Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. céu
- ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. ceo
- ^ a b c d Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. céu
- ^ 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. céu
- ^ 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. céu
Related etymologies
Cite this entry
“Céu.” Etymologically, 15 Nov. 2026, etymologically.com/pt/c%C3%A9u. Accessed 16 Nov. 2026.
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