Etymologically

Etymology and origin of the Portuguese word decisão

Confidence
Established
Formation
Borrowing
First attested
1550 spelt decysão and decizão More words from the 16th century
Borrowed from
Latin decisio
Ultimate origin
Latin caedō
Etymology tree
inherited borrowed derived
Latin caedō
Latin dēcīdō
French décider
Romanian decide
Italian decidere
Spanish decidir
Latin dēcīsiō
French décision
Romanian decizie
Italian decisione
Portuguese decisão
Spanish decisión
From the same root
Dutch precies ← caedō
Latin abscīdō ← caedō
Latin accidō ← caedō
Latin ancile ← caedō
Latin caedēs ← caedō
Latin caementum ← caedō
Latin caestus ← caedō
Latin caesūra ← caedō
Latin circumcīdō ← caedō
Latin cīsōrium ← caedō
Latin concidō ← caedō
Latin discīdō ← caedō
Latin excidō ← caedō
Latin incidō ← caedō
Latin intercidō ← caedō
Latin lapicīdīnae ← caedō
Latin occidō ← caedō
Latin parricīda ← caedō
Latin praecīdō ← caedō
Latin recidō ← caedō
Latin succidō ← caedō
Latin trucīdō ← caedō
English decide ← dēcīdō
Latin dēcīsīvus ← dēcīdō
Italian deciso ← decidere

Pronunciation

  • Brazil: /de.siˈzɐ̃w̃/, [de.siˈzɐ̃ʊ̯̃][1]
  • Portugal: /dɨ.siˈzɐ̃w̃/[1]

Forms

decisão f (plural decisões)[1] Houaiss records the 16th-century spellings decysão and decizão (1550) and decissão (1559).[2] Pereira (1697) and Bluteau (1712–1728) head the word decisam, the spelling of their time.[3][4]

Etymology

It is a learned word, borrowed from Latin dēcīsiō (“a settlement; a decision”), the noun of the verb dēcīdō (“to cut off; to settle”).[5][6][1] Houaiss takes it from French décision, recorded in French in 1314, and that word in turn from the Latin noun.[2] Nascentes calls it a semi-learned word, and Wiktionary also allows a formation inside Portuguese, from Portuguese decidir + -são.[6][1]

In Latin the noun meant “a cutting down, a reduction” and, far more often, “a settlement, an agreement” of a dispute.[7][8] Medieval Latin used it for a judicial sentence.[9] The verb is formed from dē- and caedō (“to cut”).[5][10]

The same Latin noun gave Galician decisión, Spanish decisión, Catalan decisió, Italian decisione and Romanian decizie.[1][11]

Earliest recorded meaning

Houaiss dates the word to 1550, in the spellings decysão and decizão, with the sense “the act or result of deciding”.[2] Cunha's first record is from the 17th century.[5] Bluteau defines decisam as the final ruling that ends a lawsuit, a question or a doubt in business, and notes that the Latin word did not quite have this sense in Cicero.[4]

Semantic evolution

The word began in the language of the law and of disputes: a ruling or sentence that closes a case.[4][2] Morais (1813) gives the act of deciding and the sentence that settles a matter.[12] The 19th-century dictionaries add a sense of character, “resolve, courage”: Figueiredo lists coragem, intrepidez beside the legal senses.[10][13]

Modern dictionaries keep all three lines: a choice made after thought, a judge's ruling, and firmness in deciding.[2][14][15] Brazilian sport uses decisão for the deciding match of a championship, the final.[2][13]

Timeline

  • 1550 – first record, spelt decysão and decizão.[2]
  • 1559 – the spelling decissão.[2]
  • 1697 – Pereira's Thesouro enters Decisam, glossed with the Latin word.[3]
  • 1712–1728 – Bluteau defines decisam as the last ruling that ends a lawsuit or question.[4]
  • 1813 – Morais has the modern spelling decisão.[12]
  • 1899 – Figueiredo records the sense “courage, boldness”.[10]

Meanings

Noun

  1. The act or result of deciding; a decision, a resolution reached after thought or discussion.[2][14][16]
  2. (law) A ruling or sentence; the part of a judgment in which the judge settles the dispute.[2][15]
  3. A fact or event that settles the course or outcome of something.[2]
  4. The ability to decide without hesitation; resolve, firmness, courage (coragem).[2][14][17]
  5. (theology) A ruling of a church council on a matter of faith or dogma.[2][16]
  6. (Brazil, sport) The deciding game of a competition; a final.[2][13]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. decisão
  3. ^ a b 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. decisam
  4. ^ 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. decisam
  5. ^ a b c Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. decidir
  6. ^ a b Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. decisão
  7. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. dēcīsiō
  8. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press, p. s.v. decisio
  9. ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill, p. s.v. decisio
  10. ^ a b c Figueiredo, Cândido de (1899), Novo diccionário da língua portuguesa, 1st ed., 2 vols., Lisboa: Tavares Cardoso & Irmão, p. 382
  11. ^ 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. decisión
  12. ^ a b Silva, António de Morais (1813), Diccionario da lingua portugueza, 2nd ed., 2 vols., Lisboa: Typographia Lacerdina, p. 1, 515
  13. ^ a b c 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. decisão
  14. ^ a b c Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. decisão
  15. ^ 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. decisão
  16. ^ a b Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. decisão
  17. ^ 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. decisão

Related etymologies

Cite this entry

“Decisão.” Etymologically, 15 Nov. 2026, etymologically.com/pt/decis%C3%A3o. Accessed 16 Nov. 2026.

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