Etymology and origin of the Portuguese word efeito
- Confidence
- Established
- Formation
- Inherited
- First attested
- 1200s spelt effecto More words from the 13th century
- Inherited from
- Latin effectus
- Ultimate origin
- Latin faciō
Etymology tree
Pronunciation
Forms
efeito m (plural efeitos)[1]
Etymology
It is inherited from Latin effectus (“performance; result”), from efficiō (“to bring about, accomplish”).[2][3][1][4] Nascentes counts it a semi-learned word.[5] The oldest records keep the Latin spelling Old Galician-Portuguese effecto; the spellings ⟨effeito⟩ and ⟨efeito⟩, with ⟨ei⟩ for the Latin ⟨ec⟩, come later: Houaiss dates ⟨efeito⟩ to the 15th century, and Cunha ⟨effeito⟩ to 1572.[2][3]
The Latin word is also Italian effetto and French effet, a borrowing first written aifait in 1272.[1][6] The Latin verb is formed of ex- and faciō (“to make, do”).[6]
Earliest recorded meaning
Houaiss dates the first record, spelt effecto, to the 13th century, Cunha to the 14th.[2][3] Lorenzo's chronology quotes the Portuguese chronicle of 1344: e os effectos que fazem as strellas “and the effects that the stars produce”, already the sense “result of a cause”.[7]
Semantic evolution
Cardoso (1569) renders it with Latin effectus and res, “the thing itself”.[8] Bluteau defines it as what a cause has produced, and has the phrase pôr em effeito.[9] Morais (1789) adds “execution”, “aim, end” and pôr em effeito “to carry out, fulfil”.[10] Modern senses include “impression, sensation”, a negotiable security in commerce, the spin given to a ball, the special effects of cinema and sound recording, and named phenomena of physics such as the efeito Doppler.[2][11][1]
Timeline
- 13th century – first record, spelt effecto.[2]
- 1344 – effectos in the Portuguese chronicle of 1344.[7]
- 1435–1439 – the spelling effecto is still in use.[7]
- 15th century – first record of the spelling efeito.[2]
- 1569 – Cardoso's dictionary heads the word Effeito.[8]
- 1572 – effeito.[3]
- 1789 – Morais records pôr em effeito “to carry out”.[10]
- 1871–1874 – Vieira heads the word effeito and derives it from Latin effectus.[12]
- 1899 – Figueiredo enters efeito as a variant of effeito.[13]
Meanings
Noun
- An effect; the result or consequence of a cause.[2][1][14]
- Aim, purpose: para tal efeito.[2][14]
- Realization, execution: levar a efeito “to carry out”.[2][14]
- Power, efficacy: um remédio sem efeito.[2]
- An impression or sensation produced in someone.[2][11]
- (commerce) A negotiable security or bill.[2][11]
- (art, cinema, music) A device used to produce an impression: efeitos especiais.[2][1]
- (sports) spin given to a ball.[2][11]
- (physics) A phenomenon produced by a definite cause: efeito Doppler.[2][1]
Related words
Usage notes
Com efeito means “indeed, in fact”.[11]
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 Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. efeito
- ^ a b c d Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. efeito
- ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. effectus
- ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. efeito
- ^ a b Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. effet
- ^ 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. effecto
- ^ a b Cardoso, Jerónimo (1569–1570), Dictionarium ex lusitanico in latinum sermonem, Lisboa: João Álvares (CLP transcription, Universidade de Aveiro), p. s.v. effeito
- ^ Bluteau, Raphael (1712–1728), Vocabulario portuguez e latino, 8 vols. + 2 supplement vols., Coimbra / Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. effeito
- ^ a b 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, 462
- ^ a b c d e Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. efeito
- ^ Vieira, Frei Domingos (1871–1874), Grande Diccionario Portuguez ou Thesouro da lingua portugueza, 5 vols., Porto: Ernesto Chardron e Bartholomeu H. de Moraes, p. 3, 13
- ^ Figueiredo, Cândido de (1899), Novo diccionário da língua portuguesa, 1st ed., 2 vols., Lisboa: Tavares Cardoso & Irmão, p. 472
- ^ a b c Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. efeito
Related etymologies
Cite this entry
“Efeito.” Etymologically, 15 Nov. 2026, etymologically.com/pt/efeito. Accessed 16 Nov. 2026.
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