Etymologically

Etymology and origin of the Portuguese word número

Confidence
Established
Formation
Borrowing
First attested
1391 More words from the 14th century
Borrowed from
Latin numerus
Ultimate origin
Latin numerus
Etymology tree
inherited borrowed derived
Latin numerus
Aromanian numir
Catalan nombre
French nombre
Italian novero
Romanian număr
Italian numero
French numéro
German Nummer
Portuguese número
Spanish número
From the same root
English numerical ← numerus
French numérique ← numerus
Latin innumerus ← numerus
Latin numerālis ← numerus
Latin numerius ← numerus
Latin numerō ← numerus
Latin numerōsus ← numerus
Latin saepenumerō ← numerus
French nombreux ← nombre

Pronunciation

  • Brazil: /ˈnũ.me.ɾu/[1]
  • Portugal: /ˈnu.mɨ.ɾu/[1]

Forms

número m (countable and uncountable, plural números)[1] Houaiss records numero and numerro in 1391, and Lorenzo numoro in 1430.[2][3]

Etymology

It is borrowed from Latin numerus (“number”), a learned word that replaced the old popular Old Galician-Portuguese nombro.[4][5][2] García de Diego and the REW also treat the Portuguese word, like Spanish número, as learned, while Wiktionary takes it as inherited.[6][7][1]

The popular outcome of the Latin word is Romanian număr, French nombre, Catalan nombre and Italian novero.[7] French had the word from the early 12th century.[8]

The Latin word goes back to *nomeso-.[9] De Vaan connects it with *nem- (“to apportion”), the root of νέμω (némō, “to distribute”); the DHLF calls its origin unknown.[9][8][1] The grammatical sense is a loan from ἀριθμός (arithmós).[1]

Earliest recorded meaning

Houaiss dates the first record to 1391, from Cunha's index of medieval Portuguese.[2] Lorenzo's chronology cites conto e numero antijguo (perhaps 1421) and a çerto numero dos ditos “a certain number of the said men” (1433), where the word means a quantity of people or things.[3]

Semantic evolution

Bluteau defines numero as a measurable multitude, a gathering of units, and so excludes one from the numbers.[10] Morais in 1789 still gives it as the sum of two or more units, opposed to unity.[11] Vieira includes the parts of a unit and the figures used to write numbers.[12]

Later senses include the issue of a periodical, a lottery ticket, a category of people, the grammatical number, the rhythm of prose and verse, and an act in a show.[2][13][1] In everyday use the word also means a telephone number and a shoe size.[1]

Timeline

  • 1391 – first records, spelt numero and numerro.[2]
  • 1430 – numoro;[3] a çerto numero in 1433.[3]
  • 15th century – Cunha's date for the word.[14]
  • c. 1510 – numero in the Vida de Santo Agostinho.[15]
  • 1544 – the word in a private letter.[16]
  • 1712–1728 – Bluteau defines numero as a gathering of units.[10]

Meanings

Noun

  1. (mathematics) A number, the abstract entity that expresses a quantity.[2][13][17][1]
  2. A quantity, amount: um grande número de pessoas.[2][13]
  3. A numeral, the figure or word that represents a quantity.[13][1]
  4. The number that identifies something in a series: a house, a telephone, a lottery ticket.[2][1]
  5. An issue of a newspaper or magazine.[2][18][1]
  6. A class, category: Ele não é do número dos que desistem.[2][18]
  7. (grammar) The category of singular and plural.[2][18][1]
  8. (literature) Rhythm, cadence (cadência) of prose or verse.[2]
  9. An act in a show, a piece of music or dance.[2][1]
  10. A shoe size.[1]

References

  1. ^ a b c d e f g h i j k l m n o Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. número
  3. ^ a b c d 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. numero
  4. ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. número
  5. ^ Huber, Joseph (1933), Altportugiesisches Elementarbuch, Heidelberg: Carl Winter, p. § 294
  6. ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. s.v. numerus
  7. ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 5994
  8. ^ a b Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. nombre
  9. ^ a b de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill, p. s.v. numerus
  10. ^ a b Bluteau, Raphael (1712–1728), Vocabulario portuguez e latino, 8 vols. + 2 supplement vols., Coimbra / Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. numero
  11. ^ 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, 122
  12. ^ Vieira, Frei Domingos (1871–1874), Grande Diccionario Portuguez ou Thesouro da lingua portugueza, 5 vols., Porto: Ernesto Chardron e Bartholomeu H. de Moraes, p. 4, 484
  13. ^ a b c d Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. número
  14. ^ Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. número
  15. ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. numero
  16. ^ CLUL (ed.) (2014), P.S. Post Scriptum: Arquivo Digital de Escrita Quotidiana em Portugal e Espanha na Época Moderna, Lisboa: Centro de Linguística da Universidade de Lisboa, http://ps.clul.ul.pt, p. s.v. número
  17. ^ 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. número
  18. ^ a b c Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. número

Related etymologies

Cite this entry

“Número.” Etymologically, 15 Nov. 2026, etymologically.com/pt/n%C3%BAmero. Accessed 16 Nov. 2026.

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