Etymologically

Etymology and origin of the Portuguese word rabo

Confidence
Probable
Formation
Inherited
First attested
1200s cantigas d'escarnho More words from the 13th century
Inherited from
Latin rapum
Ultimate origin
Latin rāpum
Etymology tree
inherited borrowed derived
Latin rāpum
Portuguese rabo
Spanish rabo
From the same root
Latin rāpīna ← rāpum

Pronunciation

  • Brazil: /ˈʁa.bu/, [ˈha.bu][1]
  • Rio-de-Janeiro: /ˈʁa.bu/, [ˈχa.bu][1]
  • Portugal: /ˈʁa.bu/, [ˈʁa.βu][1]
  • Portugal, Southern: /ˈʁa.bu/[1]

Forms

rabo m (plural rabos)[1] Houaiss records the spelling rrabo in the 15th century.[2]

Etymology

It is inherited from Latin rāpum (“turnip”), written Old Galician-Portuguese rabo in the oldest texts.[2][3][1][4] Corominas explains the change of meaning by comparing the turnip, pulled up with its tuft of leaves at one end, with a tail ending in a brush of hair;[5][6] Nascentes follows him, and Corominas adds that other languages name the tail with similar images.[5][6] For Corominas the word first named the fleshy dock of the tail, as against the hair.[5] In his larger dictionary Nascentes still found the semantic step unexplained, and Corominas himself calls the Latin origin probable.[7][8]

The tail sense is shared with Galician rabo and Spanish rabo, first recorded in Berceo.[8][1] Elsewhere the Latin word kept the plant's name, as in Italian rapa and French rave “turnip”.[1][9]

The Latin word goes back to Proto-Italic *rāpo- and is cognate with Ancient Greek ῥάπυς (rhápus, “turnip”), Lithuanian rópė and Old High German ruoba.[10] Wiktionary reconstructs Proto-Indo-European *(s)rā́ps.[1]

Earliest recorded meaning

Houaiss dates the word to 1188–1230, following Machado.[2] Cunha dates it to the 13th century.[3] In the satirical cantigas of that century Afonso X has a wretch cook meio rabo de carneiro “half a ram's tail”, and Afonso Mendez de Besteiros says of a man that alçou rab' e foi sa via a Portugal “he raised his tail and went off to Portugal”.[11] The Crónica Troiana has non dauan por uos mays que por lo rabo de hun can “they cared no more for you than for a dog's tail”.[11]

Semantic evolution

Pereira (1697) renders the word both as Latin cauda and as penis.[12] Bluteau describes the tail of four-footed animals, of bone covered with hair, of birds, of feathers, and of fish, of cartilage.[13] Morais (1789) adds the train of a dress.[14] Silva Bastos (1912) labels the sense “buttocks” as vulgar and lists plant and grape names such as rabo de asno and rabo de gato.[15]

Transferred senses include the rear part of any object, the handle of a tool in Portugal, the tails of a frock coat in Brazil, and the lower stretch of a waterfall.[2][16] Houaiss labels as taboo the senses “anus” and, in Portugal, “homosexual man”.[2] The word was borrowed into Saramaccan as lábu.[1]

Timeline

  • 1188–1230 – Houaiss's first date, after Machado.[2]
  • 13th century – the cantigas d'escarnho use the word for animal tails.[11][3]
  • 15th century – the spelling rrabo;[17] rabear “to wag the tail” is also first recorded.[2][3]
  • 1525 – rabo in the Memorial da Infanta Santa Joana.[17]
  • 1697 – Pereira renders it as Latin cauda and penis.[12]
  • 1789 – Morais adds the train of a dress.[14]
  • 1813 – rabanada “a blow with the tail”.[3]
  • 1912 – Silva Bastos labels the sense “buttocks” vulgar.[15]

Meanings

Noun

  1. (informal) tail: the extension of the spine of many animals, and the tail feathers of a bird; a more popular word than cauda.[2][16][1]
  2. The rear part or extension of an object: o rabo do avião.[2][18]
  3. (Portugal) The handle of a tool or utensil.[2][19]
  4. (Brazil, informal) The tails of a frock coat or tailcoat.[2][16]
  5. The train of a dress.[2]
  6. (Brazil) The lower part of a waterfall, below a long stretch without falls.[2][16]
  7. (vulgar) The buttocks; the anus.[2][20][1]
  8. (Portugal, taboo) A homosexual man.[2]

Word family

  • rabada
  • rabadilha
  • rabear
  • rabiça
  • rabicho
  • rabudo
  • rabilongo
  • rabicurto
  • enrabichar
  • enrabadela
  • enrabar
  • rabadela
  • rabeira
  • rabelo
  • rabiosque
  • rabiote
  • raposa
  • cauda
  • Latin rāpum
  • Galician rabo

Usage notes

Common phrases include meter o rabo entre as pernas “to keep quiet, cowed or guilty”, olhar com o rabo do olho “to look askance” and, in Brazil, ter o rabo preso “to have something to hide”.[2][21] Fugir com o rabo à seringa means to dodge a promise or a responsibility.[20]

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 p Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. rabo
  3. ^ a b c d e Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. rabo
  4. ^ 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. rabo
  5. ^ a b c Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. rabo
  6. ^ a b Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. rabo
  7. ^ Nascentes, Antenor (1955), Dicionário etimológico da língua portuguesa, vol. 1: Nomes comuns, Rio de Janeiro (1st ed. 1932, preface by W. Meyer-Lübke), p. 430
  8. ^ a b Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 4, 744
  9. ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. rave
  10. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  11. ^ a b c 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. rabo
  12. ^ a b Pereira, Bento (1697), Thesouro da lingoa portuguesa, in the 1697 edition of his Prosodia (1st ed. 1647; CLP transcription, Universidade de Aveiro), p. s.v. rabo
  13. ^ Bluteau, Raphael (1712–1728), Vocabulario portuguez e latino, 8 vols. + 2 supplement vols., Coimbra / Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. rabo
  14. ^ 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. 2, 280
  15. ^ a b Silva Bastos, José Timóteo da (1912), Diccionario etymologico, prosodico e orthographico da lingua portugueza, Lisboa: Parceria António Maria Pereira, p. s.v. rabo
  16. ^ a b c d Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. rabo
  17. ^ a b Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. rabo
  18. ^ 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. rabo
  19. ^ 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. rabo
  20. ^ a b Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. rabo
  21. ^ Schlee, Aldyr Garcia (2019), Dicionário da Cultura Pampeana Sul-Rio-Grandense, 2 vols., Pelotas: Fructos do Paiz, p. s.v. rabo

Related etymologies

Cite this entry

“Rabo.” Etymologically, 15 Nov. 2026, etymologically.com/pt/rabo. Accessed 16 Nov. 2026.

Last edited on . ·