Etymologically

Etymology and origin of the Portuguese word ano

Confidence
Established
Formation
Inherited
First attested
1214 Testament of Afonso II More words from the 13th century
Inherited from
Latin annus
Ultimate origin
Proto-Indo-European *h₂et-no-
Etymology tree
inherited borrowed derived
Latin annus
Catalan any
French an
Italian anno
Portuguese ano
Romanian an
Spanish año
From the same root
English millennium ← annus
Latin annālis ← annus
Latin anniculus ← annus
Latin anniversārius ← annus
Latin annōna ← annus
Latin annōsus ← annus
Latin annōtinus ← annus
Latin annuus ← annus
Latin biennium ← annus
Latin decennis ← annus
Latin perennis ← annus
Latin quadriennium ← annus
Latin quinquennium ← annus
Latin quotannīs ← annus
Latin sollemnis ← annus
Latin triennium ← annus
French année ← an
Spanish cumpleaños ← año

Pronunciation

  • Brazil: /ˈɐ̃.nu/[1]
  • Portugal: /ˈɐ.nu/[1]
  • Northern, Portugal: /ˈa.nu/[1]
  • /ˈɐ.nʷ/[1]

Forms

ano m (plural anos)[1] Houaiss records the medieval spellings ano (1273), año (1275) and ãno (1278).[2] Wiktionary and García de Diego give the older spelling anno.[1][3]

Etymology

It is inherited from Latin annus (“year”), written Old Galician-Portuguese ano in the oldest texts.[2][4][5][1]

The same Latin word is Galician ano, Spanish año, Catalan any, French an, Italian anno and Romanian an.[6][1]

The Latin word goes back to *atnos, from *h₂et-no-, probably a derivative of *h₂et- (“to go”), so that the year was first “that which goes”.[7][1] Its closest relatives are in Italic and Germanic: Gothic has 𐌰𐍄𐌰𐌸𐌽𐌹 (ataþni, “year”).[8][1] Lewis & Short still report the older view that it came from anus (“ring”), the year as a circuit of time.[9]

Earliest recorded meaning

Lorenzo's chronology quotes a Latin charter of 1047 with the Romance-looking plural anus (per singulos anus, “for each year”).[10] The first record in Portuguese is in the Testament of Afonso II of 1214, which orders three commemorations a year (en tres partes do ano).[10] Machado's first quotation is a document of 1264 dated na Era de Mil e CCC e dous anos.[4] In these texts the word already has its modern sense, a period of twelve months.[10]

Semantic evolution

The Cantigas de Santa Maria use it in phrases still current, such as cad'ano “every year” and a cabo dun ano “after a year”, and the profane cantigas already have Ano Novo for the first of January.[11]

Later dictionaries add the astronomical definition, the time the Earth takes to go round the Sun, and extend it to other planets (o ano de Júpiter).[2][12] The plural anos came to mean a person's age and, in Portugal, a birthday: fazer anos is “to have a birthday”, and the dia de anos is the birthday itself.[13][14] Phrases such as ano escolar, ano agrário and ano fiscal name a yearly cycle that does not begin in January.[2][13]

The word passed into the Portuguese-based creoles: Kabuverdianu ánu, Guinea-Bissau Creole anu and Papiamentu aña.[1]

Timeline

  • 1047 – a Latin charter writes per singulos anus.[10]
  • 1214 – tres partes do ano in the Testament of Afonso II.[10]
  • 1264 – a dated document has dous anos.[4]
  • 1273 – Houaiss's first record of the spelling ano;[2] año follows in 1275 and ãno in 1278.[2]
  • 13th century, second half – the Cantigas de Santa Maria use cad'ano and a cabo dun ano.[10]
  • c. 1400 – the earliest occurrence in the CTA corpus, a fragment of the Flos Sanctorum of Santiago de Compostela.[15]
  • 1881 – the first Caldas Aulete lists ano novo, dia de ano-bom and fazer anos.[13]

Meanings

Noun

  1. (astronomy) The time a planet takes to complete one revolution around the Sun, especially the Earth, about 365 days and a quarter.[2][16][12]
  2. A calendar year, from 1 January to 31 December: No ano de 1990 mudámos de casa.[2][13]
  3. Any period of twelve months, counted from any day: Trabalhei três anos naquela fábrica.[2][12][1]
  4. A yearly cycle in which a given activity takes place: ano escolar “school year”, ano agrário “farming year”.[2]
  5. A year of life, as a measure of age: A minha filha tem doze anos.[2][14]
  6. (in the plural) A birthday;[2][14][13] fazer anos, to have one's birthday.[2][14][13]
  7. (in the plural) The passing of time, old age.[2][13]

Word family

  • ano-bom
  • ano-novo
  • anual
  • anuário
  • aniversário
  • Latin annus
  • Galician ano
  • Spanish año

Usage notes

Ano Novo (also ano-novo) is New Year's Day or the year that begins, and ano-bom is an older name for the first of January.[13][14]

Houaiss and Aurélio also record a separate, rarely used masculine noun ano “anus”, which Houaiss dates to Morais's dictionary of 1789.[2][12] Morais defines it as a medical term, and Vieira derives it from Latin anus (“ring”), noting that the Latin form ânus is the usual one.[17][18]

References

  1. ^ a b c d e f g h i j k l Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ 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. ano
  3. ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. s.v. annus
  4. ^ a b c Machado, José Pedro (1987), Dicionário etimológico da língua portuguesa, 4th ed., 5 vols., Lisboa: Livros Horizonte, p. s.v. ano
  5. ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. ano
  6. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 487
  7. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  8. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. annus
  9. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press, p. s.v. annus
  10. ^ a b c d e f 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. ano
  11. ^ Universo Cantigas: Glosario da poesía medieval profana galego-portuguesa, A Coruña: Instituto da Lingua e Literatura (ILLA), Universidade da Coruña, https://www.universocantigas.gal, p. s.v. ano
  12. ^ a b c d Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. ano
  13. ^ a b c d e f g h 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. ano
  14. ^ a b c d e Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. ano
  15. ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. ano
  16. ^ 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. ano
  17. ^ 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, 85
  18. ^ 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, 435

Related etymologies

Cite this entry

“Ano.” Etymologically, 15 Nov. 2026, etymologically.com/pt/ano. Accessed 16 Nov. 2026.

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