Etymologically

Etymology and origin of the Spanish word mío

Confidence
Established
Formation
Inherited
First attested
933 More words from the 10th century
Inherited from
Latin meus
Ultimate origin
Latin meus
Etymology tree
inherited borrowed derived
Latin meus
Aromanian meu
French mien
Italian mio
Spanish mi
Spanish mío

Pronunciation

  • /ˈmio/, [ˈmi.o][1]

Forms

mío m sg (first person singular possessive of singular masculine, masculine plural míos, feminine mía, feminine plural mías)[1]

Etymology

It is inherited from Latin meus (“my, mine”); the Old Spanish form was mio.[2][3][1] Gómez de Silva traces it through a form *mieo from the Latin accusative.[4] Old Spanish texts also write myo and meo, and in the feminine mia and ma.[5][1] Before a noun the word was reduced to the unstressed mi in Spanish, as mon and mon are in Catalan and French.[6][7]

The same Latin word is Portuguese meu, Catalan meu, French mien, Italian mio and Romanian meu.[6] In Asturian mio is used after the noun for both genders, with feminine nouns too.[8]

The Latin word is formed on the stem of ego (“I”) with an adjective ending; the OLD compares a Hittite possessive.[9] Wiktionary gives Old Latin meos and *meos, and Gómez de Silva *me-yo- (“my”).[1][4]

Earliest recorded meaning

Corominas dates the word to 933.[2] In the Cantar de mio Cid (c. 1140, known from a 14th-century copy) the form mio stands before the hero's title, mio Cid.[10][11] The Auto de los Reyes Magos (c. 1180) has it before nouns too: „Uenga mio maiordoma, qui mios aueres toma” “let my steward come, who looks after my goods”.[10]

Semantic evolution

In Old Spanish mio could stand before the noun with or without the article (mio entendimiento in Alfonso X's prose); the reduced form mi took over this position, and mío kept the position after the noun and the use as a pronoun.[12][7] Covarrubias in 1611 describes this alternation (mi casa but casa mía) and records the proverb lo mío, mío, y lo tuyo de entrambos, which mocks greedy people.[7] The Diccionario de Autoridades adds es muy mío “he is a close friend of mine” and soy mío “I am my own master”, after Latin meus sum.[13] It and the Academy's dictionary of 1817 also record mío as the call for a cat.[13][14]

After certain nouns it expresses affection (hijo mío, ¡madre mía!).[15][16] Los míos are the speaker's family or group, lo mío what suits the speaker, and de mío “by myself, on my own resources”.[16][17][3] In Cuba mío or mía is a person one feels close to.[18]

Timeline

  • 933 – first record.[2]
  • c. 1140 – mio Cid in the Cantar de mio Cid.[10]
  • c. 1180 – mio maiordoma and mios aueres in the Auto de los Reyes Magos.[10]
  • 1254 – Alfonso X's Judizios write mio entendimiento “my understanding”.[12]
  • c. 1495 – Nebrija gives Latin meus, mea, meum.[19]
  • 1525 – first record in the Americas, in Mexico City: dos esclavos míos.[20]
  • 1611 – Covarrubias records the proverb lo mío, mío, y lo tuyo de entrambos.[7]
  • 1817 – the Academy lists mío as the call for a cat and the phrases es muy mío and soy mío.[14]

Meanings

Determiner

  1. my, of mine, after the noun or as a predicate: un primo mío;[15] Ese abrigo es mío.[3][1]
  2. After certain nouns, expressing affection: ¡Ven aquí, hijo mío![15]

Pronoun

  1. With the article: mine: Tu coche es rojo y el mío es azul.[3][1]
  2. lo mío: what belongs to or suits the speaker.[16]
  3. los míos: the speaker's family, friends or group.[16][17]

Usage notes

Before a noun the short form mi (plural mis) is used: mi casa but una casa mía.[7][16] The forms are mío, mía, míos, mías.[1]

References

  1. ^ a b c d e f g h Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. mío
  3. ^ a b c d 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. mío
  4. ^ a b Gómez de Silva, Guido (1988), Breve diccionario etimológico de la lengua española, México: Fondo de Cultura Económica / El Colegio de México, p. 465
  5. ^ Diccionario del Español Medieval electrónico (DEMel), data publication 2026 (CC BY-SA), Universität Rostock, p. s.v. mío
  6. ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 5556
  7. ^ a b c d e Covarrubias Orozco, Sebastián de (1611), Tesoro de la lengua castellana o española, Madrid: Luis Sánchez (Biblioteca Wordkers transcription, CC BY 4.0), p. 1138
  8. ^ Academia de la Llingua Asturiana (2000), Diccionariu de la Llingua Asturiana, Uviéu: ALLA; online at https://mas.academiadelallingua.com/diccionariu, p. s.v. mio
  9. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  10. ^ 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. mio
  11. ^ Menéndez Pidal, Ramón (1908–1911), Cantar de Mio Cid: texto, gramática y vocabulario, 3 vols., Madrid: Bailly-Baillière, p. 352
  12. ^ 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), p. s.v. mi
  13. ^ a b Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 4
  14. ^ a b Real Academia Española (1817), Diccionario de la lengua castellana, 5th ed., Madrid: Imprenta Real, p. 576
  15. ^ a b c Real Academia Española (2001), Diccionario de la lengua española, 22nd ed., Madrid: Espasa-Calpe, p. s.v. mío
  16. ^ a b c d e Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. mío
  17. ^ a b Battaner Arias, Paz (dir.) (2017), Diccionario general de la lengua española VOX, Barcelona: Larousse Editorial, p. s.v. mío
  18. ^ Asociación de Academias de la Lengua Española (2010), Diccionario de americanismos, Lima: Santillana; online at https://www.asale.org/damer, p. s.v. mío
  19. ^ Nebrija, Antonio de (1513), Vocabulario español-latino, Salamanca, ed. Marina Vidal Díez (2007), Biblioteca Virtual Miguel de Cervantes, p. 380
  20. ^ 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. mío

Related etymologies

Cite this entry

“Mío.” Etymologically, 7 Nov. 2026, etymologically.com/es/m%C3%ADo. Accessed 7 Nov. 2026.

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