Etymologically

Etymology and origin of the Spanish word vacío

Confidence
Established
Formation
Inherited
First attested
c. 1140 Cantar de mio Cid More words from the 12th century
Inherited from
Latin vacivus via Old Spanish
Ultimate origin
Latin vacō
Etymology tree
inherited borrowed derived
Latin vacō
Spanish vagar
Latin vacīvus
Spanish vacío
From the same root
Latin supervacāneus ← vacō
Latin vacātiō ← vacō
Latin vacuus ← vacō

Pronunciation

  • /baˈθio/, [baˈθi.o], /baˈsio/[1]

Forms

vacío (feminine vacía, masculine plural vacíos, feminine plural vacías)[1] Old Spanish wrote the word with ⟨z⟩, vazio, uazio or bazio, for a voiced sound that Nebrija still had and that survives in Cáceres and in Judeo-Spanish.[2][3] In the Cantar de mio Cid and the Poema de Fernán González the word was stressed vázio, under the influence of the present tense of vaciar.[2]

Etymology

It is inherited from Old Spanish vazio, inherited from Latin vacīvus (“empty, unoccupied”).[2][4][5][1] The Latin adjective was an old and rare variant of vacuus (“empty”), which it replaced in Vulgar Latin.[4][6] It is formed from vacō (“to be empty, be free”) with the suffix -īvus, and Plautus and Terence usually wrote it vocīvus.[1][7][8]

The same Latin word is Portuguese vazio, Galician vacío and Asturian vacíu, and Aragonese and Navarrese dialects have vacivo.[9][1][10] Elsewhere it survives mostly as a word for livestock: Catalan baciu names sheep kept for fattening rather than breeding, and dialects of Occitan, French and northern Italy use it for ewes or cows that are not with young.[11][12] Corominas notes the sense “not pregnant” in an Aragonese inventory of 1379 and explains the Catalan feminine baciva from a form *vacciva, crossed with vacca (“cow”).[2]

The classical adjective gave vago (“empty”), still heard in the phrase en vago, and the learned vacuo, recorded about 1449.[2]

Earliest recorded meaning

Corominas dates the word to the Cantar de mio Cid, of about 1140, where it is spelt with ⟨z⟩.[2][4] In the Lapidario of Alfonso X (1250–1279) it describes a stone that is hollow inside: et quando la quebrantan fallan la uazia de dentro “and when they break it they find it empty inside”.[13]

Semantic evolution

In 1611 Covarrubias gave both the noun, “the unoccupied place”, and the sense “vain, foolish and presumptuous”, with the saying una vana y dos vacías for empty talkers.[14] The Academy's dictionary of 1817 listed the senses that the word still has: empty of any body, of a female animal without young, vain, idle, and of a cart, a house or a town without its load or its people.[15]

The noun took on technical senses: the flank between the ribs and the hip, a step of Spanish dance, and in physics a space without matter.[5][16] It also names a lack that is felt, of a thing or a person.[5] In Central America and the Dominican Republic a food eaten vacío is eaten without tortilla or side dish, and in Costa Rica coffee is drunk vacío, on its own.[17]

Timeline

  • c. 1140 – first record, in the Cantar de mio Cid.[4][2]
  • 1250–1279 – the Lapidario of Alfonso X uses uazia of a hollow stone.[13]
  • 1379 – an Aragonese inventory uses vacía of a ewe that is not pregnant.[2]
  • 1516 – first record from the Americas, in Puerto Rico: cajas vacías grandes “large empty boxes”.[18]
  • 1611 – Covarrubias records the noun and the sense “vain, presumptuous”.[14]
  • 1817 – the Academy lists the senses for animals, carts, houses and towns.[15]

Meanings

Adjective

  1. empty: lacking physical or mental content: La botella ya estaba vacía.[5][1]
  2. Of a female farm animal: not pregnant.[5]
  3. Of a place: with fewer people than it can hold.[5]
  4. hollow, or lacking the solidity it should have.[5]
  5. vain, conceited.[5]
  6. (rare) Fruitless, come to nothing.[5]
  7. (rare) idle, without the occupation one could or should have.[5]
  8. (Central America, Dominican Republic) Of food: eaten without tortilla or a side dish.[17]

Noun

  1. A cavity or hollow in something.[5]
  2. The flank: the hollow between the false ribs and the hip.[5][16]
  3. An abyss or a great drop.[5]
  4. A movement of Spanish dance in which one foot is raised sharply and then let fall.[5]
  5. A void: the lack of something or someone that is missed: Su muerte dejó un gran vacío en la familia.[5]
  6. (physics) A vacuum, a space without matter.[5][16][1]
  7. (obsolete) A vacancy, a post not yet filled.[5]

Word family

  • vaciedad
  • vaciar

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 5, 728
  3. ^ Diccionario del Español Medieval electrónico (DEMel), data publication 2026 (CC BY-SA), Universität Rostock
  4. ^ a b c d Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. vacío
  5. ^ a b c d e f g h i j k l m n o p q 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. vacío
  6. ^ Bénaben, Michel (2000), Dictionnaire étymologique de l'espagnol, Paris: Ellipses
  7. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  8. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  9. ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954)
  10. ^ Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. 3471
  11. ^ Alcover, Antoni M.; Moll, Francesc de B. (1930–1962), Diccionari català-valencià-balear, 10 vols., Palma de Mallorca: Moll
  12. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  13. ^ a b 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)
  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. 1368
  15. ^ a b Real Academia Española (1817), Diccionario de la lengua castellana, 5th ed., Madrid: Imprenta Real, p. 874
  16. ^ a b c Real Academia Nacional de Medicina (2011), Diccionario de términos médicos, Madrid: Editorial Médica Panamericana; online at https://dtme.ranm.es
  17. ^ a b Asociación de Academias de la Lengua Española (2010), Diccionario de americanismos, Lima: Santillana; online at https://www.asale.org/damer
  18. ^ Boyd-Bowman, Peter (2003), Léxico hispanoamericano 1493–1993, ed. Ray Harris-Northall and John J. Nitti, New York: Hispanic Seminary of Medieval Studies

Related etymologies

Cite this entry

“Vacío.” Etymologically, 14 Nov. 2026, etymologically.com/es/vac%C3%ADo. Accessed 14 Nov. 2026.

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