Etymologically

Etymology and origin of the Portuguese word ambos

Confidence
Established
Formation
Inherited
First attested
1228 a notarial document More words from the 13th century
Inherited from
Latin ambo
Ultimate origin
Latin ambo
Etymology tree
inherited borrowed derived
Latin ambō
Italian ambo
Portuguese ambos
Spanish ambos
Romanian ambii

Pronunciation

  • Brazil: /ˈɐ̃.bus/[1]
  • Rio-de-Janeiro: /ˈɐ̃.buʃ/[1]
  • Portugal: /ˈɐ̃.buʃ/[1]

Forms

ambos m pl (feminine plural ambas)[1] The feminine is ambas.[1][2] Houaiss records ambus and amos beside ambos in the 13th century, and medieval texts join the article to it as ambalas, ambolos.[2][3][4]

Etymology

It is inherited from Latin ambō (“both”), written Old Galician-Portuguese ambos in the oldest texts.[2][5][4][1] Cunha calls the Latin word an old dual.[5]

The same Latin word is Galician ambos and Spanish ambos.[6] Medieval Castilian usually had amos, and the form with /b/ spread from Leonese with the help of the Latin word.[7] There is also Italian ambedue.[6]

De Vaan reconstructs Proto-Italic *ambō and compares Ancient Greek ἄμφω (ámphō) and Lithuanian abù, and derives it from Proto-Indo-European *h₂(e)nt-bʰoH.[8] Wiktionary instead connects it with *h₂m̥bʰi (“round about”), though the Latin entry notes Dunkel's view that only the first syllable belongs to that root.[1]

Earliest recorded meaning

Machado quotes a Latin charter of 936 with inter ambas uillas “between both villages”.[4] In Galician-Portuguese the word is found from the 13th century; a document of 1228 has den ambos fiador “let both give a guarantor”, and the Cantigas de Santa Maria have Quando foron ambos a hũa parte “when both went to one side”.[5][3]

Semantic evolution

The medieval language often reinforced the word with the numeral: ambos e dous, ambos de dous, ambos a dous.[3][9] Morais in 1789 calls ambos de dous a faulty phrase, while Aurélio notes that the people still use ambos de dois;[10][11] Camões wrote De ambos de dous a fronte coroada.[10][11] Vieira insists that ambos is used only of two who do something at the same time.[12]

The forms with the article joined to the word, ambalas partes and in 1442 danbulos concelhos, gave way to ambos os, ambas as.[3][4]

Timeline

  • 936 – inter ambas uillas in a Latin charter.[4]
  • 1228 – den ambos fiador in a notarial document.[3]
  • 13th century – ambos, ambus and amos.[2][5]
  • 1442 – danbulos concelhos, with the article joined.[4]
  • c. 1450 – ambos in the Livro das tres vertudes.[13]
  • 1569 – Cardoso glosses Ambos with Latin ambo.[14]
  • 1789 – Morais calls ambos de dous a faulty phrase.[10]

Meanings

Determiner

  1. both, the one and the other, followed by the article: ambos os irmãos, ambas as pernas.[2][11][1]

Pronoun

  1. Both, the two already mentioned: Chamei os dois e ambos vieram.[2][15][1]
  • Latin ambō
  • Galician ambos

Usage notes

Ambos os dois and ambos de dois are pleonastic;[9][16] Aulete advises avoiding them.[9][16]

References

  1. ^ a b c d e f g h i Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. ambos
  3. ^ a b c d e 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. ambos
  4. ^ a b c d e f Machado, José Pedro (1987), Dicionário etimológico da língua portuguesa, 4th ed., 5 vols., Lisboa: Livros Horizonte, p. s.v. ambos
  5. ^ a b c d Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. ambos
  6. ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 411
  7. ^ Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 1, 238
  8. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  9. ^ 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. ambos
  10. ^ 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, 73
  11. ^ a b c Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. ambos
  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. 1, 364
  13. ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. ambos
  14. ^ Cardoso, Jerónimo (1569–1570), Dictionarium ex lusitanico in latinum sermonem, Lisboa: João Álvares (CLP transcription, Universidade de Aveiro), p. s.v. ambos
  15. ^ Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. ambos
  16. ^ 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. ambos

Related etymologies

Cite this entry

“Ambos.” Etymologically, 15 Nov. 2026, etymologically.com/pt/ambos. Accessed 16 Nov. 2026.

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