Etymologically

Etymology and origin of the Portuguese word tavão

Confidence
Established
Formation
Inherited
First attested
1611 Barbosa's dictionary More words from the 17th century
Inherited from
Latin tabanus
Ultimate origin
Latin tabānus

Pronunciation

  • Brazil: /taˈvɐ̃w̃/, [taˈvɐ̃ʊ̯̃][1]
  • Portugal: /tɐˈvɐ̃w̃/[1]
  • Northern, Portugal: /tɐˈbɐ̃w̃/, [tɐˈβɐ̃w̃][1]

Forms

tavão m (plural tavões or (rare) tavãos)[1] Older and regional forms are tabão (tabaõ 1721, tabão 1789), atavão and atabão.[2][1][3]

Etymology

It is inherited from Latin tabānus (“gadfly, horsefly”), written Old Galician-Portuguese tavão in a cantiga d'escarnho.[2][4][5][1][6]

The same Latin word is Galician tabán, Spanish tábano, Catalan tavà, French taon and Romanian tăun; Italian tafano and Occitan tavan point to a variant *tafānus.[7][1] Corominas notes that Portuguese and Italian keep the Latin stress on the second syllable, while Spanish moved it to the first.[8]

The Latin word is recorded from Varro on; its origin is unknown.[9][1] Corominas takes it to be a loan from a non-Indo-European language, and Wiktionary notes the argument, based on proper names, that it is Etruscan.[8][1]

Earliest recorded meaning

The oldest record is a cantiga d'escarnho by Afonso Mendez de Besteiros, in which a man who sees the jinetes behaves come boi que fer tavão “like an ox that a horsefly stings”: he shakes himself, rolls about, lifts his tail and makes off to Portugal.[10][11] The sources give the song no date.[10]

Semantic evolution

Barbosa (1611) renders it with Latin tabanus and asilus.[12] Morais (1813) describes the atabão as a fly that bites and sucks blood.[3] The original Caldas Aulete names species such as the tavão-besteiro or moscardo-dos-bois, which stings oxen and horses.[13] Cunha lists among its derivatives tavanês “scatterbrained” (16th century), estabanado and estouvado “rash, reckless” (1813) and atavanado, of a horse's coat (1836).[4]

The word is now used mainly in Portugal;[14] Brazil calls the same flies mutuca.[2][14]

Timeline

  • 1611 – Barbosa: Tavão, Latin tabanus.[12]
  • 1624 – Houaiss's first date.[2]
  • 1721 – the spelling tabaõ;[3] tabão in 1789.[2]
  • 1813 – estabanado and estouvado first recorded;[3] Morais describes the atabão.[4][3]
  • 1836 – first record of atavanado.[4]

Meanings

Noun

  1. (zoology) A horsefly, any fly of the family Tabanidae, which plagues cattle and horses and also bites people.[15][16][1]
  2. (Portugal) The same as mutuca.[2][14]
  3. A large fly, Rhaphiorhynchus pictus (mosca-da-madeira).[2][17]

Word family

  • atavanado
  • estabanado
  • estouvado
  • tavanês
  • Latin tabānus
  • Galician tabán
  • Spanish tábano

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 Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. tavão
  3. ^ a b c d e Silva, António de Morais (1813), Diccionario da lingua portugueza, 2nd ed., 2 vols., Lisboa: Typographia Lacerdina, p. 2, 758
  4. ^ a b c d Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. tavão
  5. ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. tavão
  6. ^ 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. tavão
  7. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 8507
  8. ^ a b Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. tábano
  9. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  10. ^ a b 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. tavão
  11. ^ 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
  12. ^ a b Barbosa, Agostinho (1611), Dictionarium lusitanicolatinum, Braga: Fructuoso Lourenço de Basto (CLP transcription, Universidade de Aveiro), p. s.v. tavão
  13. ^ 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. tavão
  14. ^ a b c 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. tavão
  15. ^ 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. tavão
  16. ^ Porto Editora (2013), Grande Dicionário da Língua Portuguesa, Porto: Porto Editora, p. 8851
  17. ^ Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. tavão

Related etymologies

Cite this entry

“Tavão.” Etymologically, 15 Nov. 2026, etymologically.com/pt/tav%C3%A3o. Accessed 16 Nov. 2026.

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