Etymologically

Etymology and origin of the Portuguese word ar

Confidence
Established
Formation
Inherited
First attested
1200s Cantigas de Santa Maria, spelt aire More words from the 13th century
Inherited from
Latin aer
Ultimate origin
Ancient Greek ἀήρ
Etymology tree
inherited borrowed derived
Ancient Greek ἀήρ (aḗr)
Latin āēr
Italian aria
English aria
French air
Romanian arie
Portuguese ar
Romanian aer
Spanish aire
The word's journey
From the same root
Ancient Greek ἀέριος (āérios) ← ἀήρ
French aéronef ← ἀήρ

Pronunciation

  • Brazil: /ˈaʁ/, [ˈah][1]
  • São-Paulo: /ˈaɾ/[1]
  • Rio-de-Janeiro: /ˈaʁ/, [ˈaχ][1]
  • Caipira: /ˈaɻ/, /ˈaɹ/[1]

Forms

ar m (plural ares)[1] Medieval texts write aire in the 13th century, and ar, aar, aere and eer in the 14th;[2][3] aaer also occurs in the 15th.[2][3]

Etymology

It is inherited from Latin āēr (“air”), which is from Ancient Greek ἀήρ (aḗr, “mist; air”).[2][4][5][1] The oldest texts write Old Galician-Portuguese aire, Old Galician-Portuguese aere and Old Galician-Portuguese aar.[2][3] Lorenzo takes the second as the oldest form and the starting point of the third, whose unstressed vowel was drawn to the stressed one.[3] He finds no need for the intermediate form with a lost semivowel that Cornu had proposed.[3] Nascentes, following Cornu, still derived the form with a double vowel from it.[6] That form then contracted to the modern one.[7][5]

The contracted form has prevailed in Portugal and in literary Galician, but Galician aire is still common in Galician speech.[7][3] Machado asked whether the medieval Portuguese form with ⟨i⟩ was a Castilianism.[4] Lorenzo thinks the Galician form may be native, given how early it is recorded.[4][3] The same Latin word is Spanish aire, Catalan aire, French air and Italian aria, the last from the Greek accusative form.[8][9]

In Homer the Greek word meant mist or haze, and only later air.[10] Beekes traces it to Proto-Indo-European *h₂ewsér, and Wiktionary relates it to *h₂ews- (“dawn”), so that the first sense would be “morning mist”.[10][1] The old connection with ἄημι (áēmi, “to blow”) is rejected.[10][11]

Earliest recorded meaning

Houaiss dates the word to the 13th century, as aire.[2] The Cantigas de Santa Maria have faz no aire parar “makes it stop in the air” and u será o ayre de fog' e de suffr' aceso “where the air will be kindled with fire and sulphur”.[12][3] In the 14th century aar appears: estava a lança no aar “the lance was in the air” in the Demanda do Santo Graal, and sôbre esta pedra, em no aar “above this stone, in the air”.[3][4]

Semantic evolution

Medieval prose already uses the plural for unhealthy air, aares corruptos in the chronicle of 1344.[3] The dictionaries describe it as one of the four elements: Bluteau as the light fluid element that surrounds the globe and that no one lives without.[13] Folqman (1755) has ar for the climate of a place, mudar de ar “to change air”, fazer castellos no ar “to build castles in the air”, and a second sense, the manner or bearing of a person.[14] Morais (1789) records the chemistry of his time, ar fixo and ar inflammavel, when ar also meant any gas.[15][2]

Popular speech gave it the sense “stroke, paralysis”, thought to come from a draught of air; it is in Silva Bastos (1912) and in the speech of southern Brazil.[16][17][2] The 20th century added ar condicionado (1929) and the broadcasting phrases no ar “on the air” and fora do ar “off the air”.[2]

Timeline

  • 13th century – aire in the Cantigas de Santa Maria.[12][2]
  • 14th century – aar in the Demanda do Santo Graal.[3][4]
  • 1344 – aares corruptos in a chronicle.[3]
  • c. 1430 – aar in the Horto do Esposo.[18]
  • 15th century – aire is frequent in the chronicle of the Frades Menores.[4][3]
  • 1569 – Cardoso heads the word Ar.[19]
  • 1755 – Folqman records mudar de ar and fazer castellos no ar.[14]
  • 1789 – Morais has ar fixo and ar inflammavel.[15]
  • 1891 – first record of ar comprimido.[2]
  • 1929 – first record of ar condicionado.[2]

Meanings

Noun

  1. air, the mixture of gases, mainly nitrogen and oxygen, that makes up the atmosphere.[2][1]
  2. The atmosphere (atmosfera); the space above the ground: Os pássaros voavam alto no ar.[2][20]
  3. Moving air; a breeze, a draught: corrente de ar.[2][21]
  4. (often in the plural) The climate of a place: os ares do campo.[2][20]
  5. A person's look or bearing; the appearance of a thing: tinha um ar cansado.[2][1]
  6. A faint sign or trace: um ar de tristeza.[2][22]
  7. (informal) A sudden illness blamed on a draught; a stroke.[2][22]
  8. (obsolete) Any gas.[2][20]
  9. (broadcasting) In the phrases no ar “on the air” and fora do ar “off the air”.[2]

Word family

  • arejar
  • aragem
  • airoso
  • ar condicionado
  • ar livre

Usage notes

Ar is also the chemical symbol of argon.[2][23]

The medieval language had another ar, an adverb meaning “again, also, moreover”, frequent in the cantigas (nunca jamais prazer ar vi “never again did I see joy”) and in use until about 1500.[4][24][25] Wiktionary derives it from Latin re- “again”.[1]

References

  1. ^ a b c d e f g h i j 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 s t u Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. ar
  3. ^ a b c d e f g h i j k l m 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. aar
  4. ^ a b c d e f g Machado, José Pedro (1987), Dicionário etimológico da língua portuguesa, 4th ed., 5 vols., Lisboa: Livros Horizonte, p. s.v. ar
  5. ^ a b Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. ar
  6. ^ Nascentes, Antenor (1955), Dicionário etimológico da língua portuguesa, vol. 1: Nomes comuns, Rio de Janeiro (1st ed. 1932, preface by W. Meyer-Lübke), p. 40
  7. ^ a b Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 1, 90
  8. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 240
  9. ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. s.v. aer
  10. ^ a b c Beekes, Robert S. P. (2010), Etymological Dictionary of Greek, with the assistance of Lucien van Beek, Leiden Indo-European Etymological Dictionary Series 10, Leiden; Boston: Brill, p. s.v. ἀήρ
  11. ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. air
  12. ^ a b 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. aire
  13. ^ Bluteau, Raphael (1712–1728), Vocabulario portuguez e latino, 8 vols. + 2 supplement vols., Coimbra / Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. ar
  14. ^ a b Folqman, Carlos (1755), Diccionario portuguez, e latino, Lisboa: Régia Officina Silviana (CLP transcription, Universidade de Aveiro), p. s.v. ar
  15. ^ a b 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, 105
  16. ^ Silva Bastos, José Timóteo da (1912), Diccionario etymologico, prosodico e orthographico da lingua portugueza, Lisboa: Parceria António Maria Pereira, p. s.v. ar
  17. ^ Schlee, Aldyr Garcia (2019), Dicionário da Cultura Pampeana Sul-Rio-Grandense, 2 vols., Pelotas: Fructos do Paiz, p. s.v. ar
  18. ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. aar
  19. ^ Cardoso, Jerónimo (1569–1570), Dictionarium ex lusitanico in latinum sermonem, Lisboa: João Álvares (CLP transcription, Universidade de Aveiro), p. s.v. ar
  20. ^ 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. ar
  21. ^ Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. ar
  22. ^ a b Porto Editora (2013), Grande Dicionário da Língua Portuguesa, Porto: Porto Editora, p. 849
  23. ^ 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. ar
  24. ^ 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. ar
  25. ^ Lopes, Graça Videira; Ferreira, Manuel Pedro et al. (2011–), Cantigas Medievais Galego-Portuguesas [online database], Lisboa: Instituto de Estudos Medievais, FCSH/NOVA, https://cantigas.fcsh.unl.pt, p. s.v. ar

Related etymologies

Cite this entry

“Ar.” Etymologically, 15 Nov. 2026, etymologically.com/pt/ar. Accessed 16 Nov. 2026.

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