Etymologically

Etymology and origin of the Spanish word caballo

Confidence
Established
Formation
Inherited
First attested
932 a charter in Oelschläger's list More words from the 10th century
Inherited from
Latin caballus
Ultimate origin
Latin caballus
Etymology tree
inherited borrowed derived
Latin caballus
Aromanian cal
French cheval
Italian cavallo
Spanish caballo
From the same root
English cavalier ← caballus
Latin caballārius ← caballus
Latin caballīnus ← caballus

Pronunciation

  • /kaˈbaʝo/, [kaˈβ̞a.ʝo], /kaˈbaʎo/[1]

Forms

caballo m (plural caballos, feminine yegua, feminine plural yeguas)[1] Old Spanish usually wrote cavallo or cauallo; the DEMel also records cavayllo and cauayllo.[2][3] The Diccionario de Autoridades held that it should be written with b, after Latin caballus, not with v as almost everyone did.[4]

Etymology

It is inherited from Latin caballus (“gelding; workhorse, nag”), a word that in Vulgar Latin was already used for any horse.[5][6][1] In the Middle Ages the Spanish word and its Romance cognates replaced equus entirely.[5] Spanish keeps the old word only in the feminine yegua and in learned words such as ecuestre and equitación.[7][8]

The same Latin word is Portuguese cavalo, Galician cabalo, Asturian caballu, Catalan cavall, French cheval, Italian cavallo and Romanian cal.[9][10][1]

caballus was itself a foreign word in Latin.[5][11] Corominas reports the view that it was Celtic and related to Slavic words for “mare”, but adds that most scholars think it a travelling word that came from the East through Greek and reached both the Gauls and Vulgar Latin.[5] De Vaan notes that Ancient Greek καβάλλης (kabállēs, “nag”) is recorded independently of Latin.[11] He cites Beekes's view that it is an Asian loanword, comparable to Persian and Turkic words for a kind of horse, and leaves the source open.[11] Wiktionary gives both the Gaulish and the Iranian proposals.[1]

Earliest recorded meaning

Corominas's first record is a charter of 932 in Oelschläger's list.[5][6] In the Cantar de mio Cid (c. 1140, in a 14th-century copy) the Cid „la cara del cavallo tornó a Santa María” “turned his horse's head towards Santa María”.[12] The first hit in a text with no later copy is the Fuero de Zorita de los Canes (1218–c. 1250): „Qui non touiere casa et cauallo non sea iuez” “whoever has no house and horse shall not be a judge”.[12]

Semantic evolution

Alfonso X's books already use the word for the chess piece, which they say is commonly called cauallo but properly cauallero.[13] They also use it for a part of the astrolabe.[13] Covarrubias in 1611 notes that Latin caballus meant a nag such as millers used, not a mount for nobles or for war.[14] The Diccionario de Autoridades adds the playing card and the use of caballos for mounted soldiers.[4] The Academy's dictionary of 1817 has the mason's trestle and an inguinal tumour.[15] The 1843 edition has the thread that crosses the skein on the reel.[16] The DLE also lists the horsepower, the vaulting horse and, in slang, heroin.[17]

In the Americas the word has been applied to people.[18][19] Malaret in 1946 recorded “stupid, brutish person” in the Antilles, Guatemala, Peru and the River Plate.[18] Today the DAMER gives both that sense and, in the Caribbean, “very able person”.[18][19] Many languages of the Americas and the Philippines took the Spanish word, among them Aymara kawallu, Guarani kavaju and Nahuatl cahuayoh.[1]

Timeline

  • 932 – first record, in a charter.[5][6]
  • c. 1140 – cavallo in the Cantar de mio Cid.[12][20]
  • 1218–c. 1250 – the Fuero de Zorita de los Canes, the first text not known from a later copy.[12]
  • 1277 – a part of the astrolabe, in Alfonso X's astronomical books.[13]
  • 1283 – the chess piece, in Alfonso X's Libro de ajedrez.[13]
  • 1512 – first record in the Americas, in Puerto Rico.[21]
  • 1611 – Covarrubias notes the low sense of Latin caballus.[14]
  • 1726–1739 – the Diccionario de Autoridades has the playing card and the cavalry sense.[4]
  • 1817 – the Academy's dictionary has the trestle and the tumour.[15]
  • 1884 – the Academy's dictionary derives it from Latin caballus and Greek.[22]
  • 1946 – Malaret records the sense “stupid person” in several American countries.[18]

Meanings

Noun

  1. horse (Equus caballus): a large solid-hoofed mammal with a long mane and tail, easily tamed and used for riding and draught: Cruzó el río a caballo.[17][1]
  2. (chess) The knight.[17][1]
  3. In the Spanish pack of cards, each of the four cards showing a horse and rider, numbered eleven.[17][8]
  4. A sawhorse, a frame for holding timber being sawn.[17]
  5. A horsepower (caballo de vapor): Este coche tiene cien caballos.[17]
  6. The thread that crosses the skein when it is wound on the reel.[17]
  7. A bubo, a soft tumour.[17]
  8. (slang) Heroin.[17][1]
  9. (architecture) In traditional building, a triangular frame of beams that carries the roof.[17]
  10. (sports) A vaulting horse; the gymnastics event performed on it.[17]
  11. (mining) A mass of barren rock that cuts across a vein of ore.[17]
  12. (Cuba, Dominican Republic, Puerto Rico; colloquial) A person with great knowledge or skill.[17][19][1]
  13. (Central America, Caribbean, Bolivia, River Plate; colloquial) A dull, rough person.[19][18]
  14. (obsolete, nautical) A unit used in measuring the tonnage of ships.[17]

Word family

  • caballa
  • caballada
  • caballar
  • caballete
  • caballista
  • caballito
  • caballón
  • caballeriza
  • caballerizo
  • caballero
  • caballería
  • caballuno
  • acaballar
  • cabalgar
  • descabalgar
  • cabalgata
  • cabalino
  • caballote
  • Latin caballus
  • Portuguese cavalo

Usage notes

Set phrases include a caballo “on horseback; astride”, caballo de batalla “the main point of a dispute” and caballo de Troya.[1][23] The proverb a caballo regalado no le mires el diente is the Spanish “don't look a gift horse in the mouth”.[1]

References

  1. ^ a b c d e f g h i j k l Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ Diccionario del Español Medieval electrónico (DEMel), data publication 2026 (CC BY-SA), Universität Rostock, p. s.v. caballo
  3. ^ Boggs, R. S.; Kasten, Lloyd; Keniston, Hayward; Richardson, H. B. (1946), Tentative Dictionary of Medieval Spanish, 2 vols., Chapel Hill, N.C., p. 107
  4. ^ a b c Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 2, 9
  5. ^ a b c d e f Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 1, 708
  6. ^ a b c Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. caballo
  7. ^ Wikcionario (Spanish Wiktionary), es.wiktionary.org
  8. ^ a b Battaner Arias, Paz (dir.) (2017), Diccionario general de la lengua española VOX, Barcelona: Larousse Editorial, p. s.v. caballo
  9. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. s.v. caballus
  10. ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. 1212
  11. ^ a b c de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  12. ^ a b c d Real Academia Española (2013–), Corpus del Diccionario histórico de la lengua española (CDH), version 3.1, https://apps.rae.es/CNDHE, p. s.v. caballo
  13. ^ a b c d Kasten, Lloyd A.; Nitti, John J.; Gago Jover, Francisco (2002–), Diccionario de la prosa castellana del Rey Alfonso X, New York: Hispanic Seminary of Medieval Studies (electronic edition 2024), p. s.v. caballo
  14. ^ a b Covarrubias Orozco, Sebastián de (1611), Tesoro de la lengua castellana o española, Madrid: Luis Sánchez (Biblioteca Wordkers transcription, CC BY 4.0), p. 464
  15. ^ a b Real Academia Española (1817), Diccionario de la lengua castellana, 5th ed., Madrid: Imprenta Real, p. 150
  16. ^ Real Academia Española (1843), Diccionario de la lengua castellana, 9th ed., Madrid: Imprenta de D. Francisco María Fernández, p. 119
  17. ^ a b c d e f g h i j k l m n Real Academia Española; Asociación de Academias de la Lengua Española (2014–), Diccionario de la lengua española, 23rd ed., online version 23.8, https://dle.rae.es, p. s.v. caballo
  18. ^ a b c d e Malaret, Augusto (1946), Diccionario de americanismos, 3rd ed., Buenos Aires: Emecé, p. 174
  19. ^ a b c d Asociación de Academias de la Lengua Española (2010), Diccionario de americanismos, Lima: Santillana; online at https://www.asale.org/damer, p. s.v. caballo
  20. ^ Alonso Pedraz, Martín (1986), Diccionario medieval español: desde las Glosas Emilianenses y Silenses (s. X) hasta el siglo XV, 2 vols., Salamanca: Universidad Pontificia de Salamanca, p. 566
  21. ^ Boyd-Bowman, Peter (2003), Léxico hispanoamericano 1493–1993, ed. Ray Harris-Northall and John J. Nitti, New York: Hispanic Seminary of Medieval Studies, p. s.v. caballo
  22. ^ Real Academia Española (1884), Diccionario de la lengua castellana, 12th ed., Madrid: Imprenta de D. Gregorio Hernando (the first Academy edition with etymologies), p. 177
  23. ^ Gaspar y Roig (eds.) (1853–1855), Biblioteca ilustrada de Gaspar y Roig: Diccionario enciclopédico de la lengua española, 2 vols., Madrid: Imprenta y Librería de Gaspar y Roig, p. 1, 427

Related etymologies

Cite this entry

“Caballo.” Etymologically, 7 Nov. 2026, etymologically.com/es/caballo. Accessed 7 Nov. 2026.

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