Etymologically

Etymology and origin of the Portuguese word idade

Confidence
Probable
Formation
Inherited
First attested
1200s Fuero Real, Portuguese translation, spelt ydade More words from the 13th century
Inherited from
Latin aevitas
Ultimate origin
Proto-Indo-European *h₂eyu-

Pronunciation

  • Brazil: /iˈda.d͡ʒi/[1]
  • Portugal: /iˈda.dɨ/, [iˈða.ðɨ], /iˈdad/[1]
  • Portugal, Southern: /iˈda.dɨ/, /iˈdad/[1]

Forms

idade f (plural idades)[1] Old Galician-Portuguese wrote ydade and jdade, and idade from the 14th century.[2][3] The spelling edade, of the 18th century, imitated the Latin.[2] Silva Bastos (1912) still enters idade as a spelling that some lexicographers followed for edade.[4][1]

Etymology

The word is inherited from Latin, written Old Galician-Portuguese ydade and Old Galician-Portuguese jdade in the oldest texts, but the sources disagree on the Latin form.[2][3]

Houaiss takes it as inherited from Latin aevitās (“lifetime, age”), the archaic form that Latin replaced with aetās: the Portuguese word has initial /i-/ from its first records, whereas the classical form would require an old form with /e-/, which is not found.[2] Nascentes first followed the classical form, but in 1966 chose the archaic one, through an older form with /ei-/ that Galician eidade and a Leonese form still show; the REW lists the Portuguese word in the same group.[2][5][6][7] Cunha, Aurélio, the DLP and Wiktionary derive it from the classical form.[3][8][9][1]

The classical word is a contraction of the archaic one, which is aevum (“duration, lifetime”) with the suffix -tās.[10][1] It goes back to Proto-Italic *aiwotāts and Proto-Indo-European *h₂eyu- (“vital energy; lifetime”).[11][12] The same Latin word is Spanish edad, Catalan edat, Occitan edat and Italian età, while French âge comes from a derivative.[7][6]

Earliest recorded meaning

Houaiss and Cunha date ydade and jdade to the 13th century.[2][3] The Portuguese translation of the Fuero Real has todo ome que nõ for de ydade “every man who is not of age” and de ydade conprida “of full age”, and a charter of 1288 speaks of a person reaching the age to manage his property.[13]

Semantic evolution

The medieval chronicles already use the word for a person's years, tan pequeno era de jdade que non auja aynda vijnt años “he was so young that he was not yet twenty”, and for old age, de grande ydade.[13] Bluteau distinguishes four senses: the whole course of a life, each stage of it, the time already lived, and time in general, an era.[14]

From the sense “era” come the names of historical and prehistoric periods, Idade Média and idade da pedra, and geology uses the word for its smallest unit of time.[2][8][15] Modern phrases are terceira idade “old age” and idade crítica “menopause”.[16][2]

Timeline

  • 13th century – ydade in the Portuguese translation of the Fuero Real;[13][2][3] jdade is also of this century.[13][2][3]
  • 1288 – ydade in a charter.[13]
  • 14th century – the spelling idade, and the derivative idoso.[2][3]
  • c. 1510 – idade in the Vida de Santo Agostinho (witness 1480–1510).[17]
  • 1556 – a private letter writes hydade.[18]
  • 1569 – Cardoso translates Idade as aetas and aevum.[19]
  • 1712–1728 – Bluteau distinguishes four senses of the word.[14]
  • 18th century – the Latinising spelling edade.[2]
  • 1912 – Silva Bastos enters idade as a spelling some lexicographers followed.[4]

Meanings

Noun

  1. age: the time a person or thing has lived or existed: Que idade tem o teu irmão?[2][8][1]
  2. The length of a life, lifespan.[2][8]
  3. A stage of life: na idade adulta.[2][8][16]
  4. old age: pessoas de idade.[2][8][9]
  5. An era, a historical or prehistoric period: a Idade do Ferro, a Idade Média.[2][8][15]
  6. (geology) The smallest unit of geological time, below the epoch.[2]

Word family

  • idoso

References

  1. ^ a b c d e f g h Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p q r Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. idade
  3. ^ a b c d e f g Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. idade
  4. ^ a b Silva Bastos, José Timóteo da (1912), Diccionario etymologico, prosodico e orthographico da lingua portugueza, Lisboa: Parceria António Maria Pereira
  5. ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. idade
  6. ^ a b Nascentes, Antenor (1955), Dicionário etimológico da língua portuguesa, vol. 1: Nomes comuns, Rio de Janeiro (1st ed. 1932, preface by W. Meyer-Lübke), p. s.v. idade
  7. ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  8. ^ a b c d e f g Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. idade
  9. ^ 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. idade
  10. ^ Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 2, 545
  11. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. aetas
  12. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. aevum
  13. ^ 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. ydade
  14. ^ a b Bluteau, Raphael (1712–1728), Vocabulario portuguez e latino, 8 vols. + 2 supplement vols., Coimbra / Lisboa (CLP transcription, Universidade de Aveiro)
  15. ^ 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. idade
  16. ^ a b Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. idade
  17. ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. idade
  18. ^ 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. idade
  19. ^ Cardoso, Jerónimo (1569–1570), Dictionarium ex lusitanico in latinum sermonem, Lisboa: João Álvares (CLP transcription, Universidade de Aveiro)

Related etymologies

Cite this entry

“Idade.” Etymologically, 15 Nov. 2026, etymologically.com/pt/idade. Accessed 16 Nov. 2026.

Last edited on . ·