Etymologically

Etymology and origin of the Spanish word mientras

Confidence
Established
Formation
Inherited
First attested
950–1000 Glosas Silenses, as mientre More words from the 10th century
Inherited from
Latin dum interim via Old Spanish
Ultimate origin
Late Latin dum interim

Pronunciation

  • /ˈmjentɾas/, [ˈmjẽn̪.t̪ɾas][1]

Forms

mientras[1] Old Spanish had mientre and mientra, beside the longer demientre, demientras and the older domientre.[2][3][1] Autoridades notes that mientres was said in the past, and Asturian still says mientres and demientres.[4][5]

Etymology

It is inherited from Old Spanish mientre, later mientras, a shortening of demientre, which goes back to an older domientre.[2][1] That form is inherited from Late Latin dum interim (“while, meanwhile”), a combination of spoken Latin that joins classical dum (“while”) and interim (“meanwhile”).[2][6][1][7] The DLE derives the word from mientra with the adverbial ⟨-s⟩.[8]

Wiktionary and Gómez de Silva explain the ⟨de-⟩ as the influence of the preposition de, and the final ⟨-s⟩ as the ending of other adverbs such as antes, entonces and quizás.[1][7] Bénaben adds that the ending ⟨-mientre⟩ was helped by the old adverbs of manner such as fuertemientre.[9]

The same phrase gave Italian mentre (Old Italian domentre), Catalan mentre (Old Catalan dementre), Old French dementres, Old Galician-Portuguese mentres and Galician mentres.[6][10][11][3]

The first word comes from Proto-Italic *dūm, an adverb built on Proto-Indo-European *dweh₂- (“long”); the second is formed from inter (“between”) and an old adverb im of the pronoun is (“that”).[1][12]

Earliest recorded meaning

The BDELC dates the word to the second half of the 10th century;[1] García de Diego places mientre in the Glosas de Silos.[2][3] The first CDH hit is the Cantar de mio Cid (c. 1140, in a 14th-century copy): mientra vós visquiéredes, bien me irá a mí “as long as you live, it will go well with me”.[13] The first hit not known from a later copy is the Cortes de Benavente of 1202, mientra que la tubiere “for as long as he holds it”.[13]

Semantic evolution

Thirteenth-century texts mostly use demientre or mientra, and mientras won out over the following centuries.[1][13] Alfonso X writes mientre for “while”, and tan amientra for “meanwhile”.[14] Nebrija (1492, 1495) gives mientras and mientras que for Latin dum and quandiu.[15][16]

The Diccionario de Autoridades calls mientras tanto a phrase of less educated people;[4] today it is standard.[8] The correlative mientras más “the more” was first recorded by the Academy in 1884,[17] and appears in the Americas from the 1530s.[18] In Mexico, Costa Rica, Peru, Bolivia and elsewhere por mientras means “for the time being”.[19]

Timeline

  • 950–1000 – mientre in the Glosas de Silos.[2][3]
  • c. 1140 – mientra in the Cantar de mio Cid (in a 14th-century copy).[13]
  • 1202 – mientra que in the Cortes de Benavente.[13]
  • 1250–1279 – Alfonso X's Lapidario writes mientre “while”.[14]
  • 1495 – Nebrija gives mientras o mientras que.[15][16]
  • 1533 – mientras más in a letter from Panama.[18]
  • 1734 – Autoridades records mientras tanto as popular usage.[4]
  • 1884 – the Academy's dictionary records mientras más and derives the word from Latin in interea, an etymology corrected to “De mientra” in 1899.[17][20]

Meanings

Adverb

  1. meanwhile, in the meantime: Yo cocino; tú, mientras, pon la mesa.[8][1]
  2. (colloquial, with más or menos) The more, the less: Mientras más corre, más se cansa.[8][21]

Conjunction

  1. while, during the time that (with the indicative): Mientras ella duerme, él lee.[8][1]
  2. As long as (with the subjunctive, expressing a condition): Mientras llueva, no salimos.[1][22]
  3. mientras que: whereas, while on the other hand.[8][1]

Word family

  • mientras que
  • mientras tanto

Usage notes

Mientras is unstressed as a conjunction and stressed as an adverb, when a pause follows it.[21] Set phrases are mientras tanto “meanwhile”, mientras que “whereas” and mientras no “until”.[8][21]

References

  1. ^ a b c d e f g h i j k l m Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. mientras
  3. ^ a b c d García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. art. 2371
  4. ^ a b c Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 4, 565
  5. ^ Academia de la Llingua Asturiana (2000), Diccionariu de la Llingua Asturiana, Uviéu: ALLA; online at https://mas.academiadelallingua.com/diccionariu, p. s.v. mientres
  6. ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 2794
  7. ^ a b Gómez de Silva, Guido (1988), Breve diccionario etimológico de la lengua española, México: Fondo de Cultura Económica / El Colegio de México, p. 462
  8. ^ a b c d e f g 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. mientras
  9. ^ Bénaben, Michel (2000), Dictionnaire étymologique de l'espagnol, Paris: Ellipses, p. s.v. mientras
  10. ^ Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier, p. s.v. mentre
  11. ^ Coromines, Joan (1980–2001), Diccionari etimològic i complementari de la llengua catalana, 10 vols., Barcelona: Curial / La Caixa (online ed., Institut d'Estudis Catalans 2024), p. 5, 588
  12. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. interim
  13. ^ a b c d e Real Academia Española (2013–), Corpus del Diccionario histórico de la lengua española (CDH), version 3.1, https://apps.rae.es/CNDHE, p. s.v. mientras
  14. ^ 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. mientras
  15. ^ a b Lleal, Coloma (dir.), DICCA-XV: Diccionario del castellano del siglo XV en la Corona de Aragón, Barcelona: Universitat de Barcelona, Grup d'Estudis d'Història de la Llengua (GHCL), https://ghcl.ub.edu/diccaxv, p. s.v. mientras
  16. ^ a b Nebrija, Antonio de (1513), Vocabulario español-latino, Salamanca, ed. Marina Vidal Díez (2007), Biblioteca Virtual Miguel de Cervantes, p. 380
  17. ^ a b Real Academia Española (1884), Diccionario de la lengua castellana, 12th ed., Madrid: Imprenta de D. Gregorio Hernando (the first Academy edition with etymologies), p. 702
  18. ^ a b 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. mientra
  19. ^ Asociación de Academias de la Lengua Española (2010), Diccionario de americanismos, Lima: Santillana; online at https://www.asale.org/damer, p. s.v. mientras
  20. ^ Real Academia Española (1899), Diccionario de la lengua castellana, 13th ed., Madrid: Imprenta de los Sres. Hernando y Compañía, p. 659
  21. ^ a b c Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. mientras
  22. ^ Battaner Arias, Paz (dir.) (2017), Diccionario general de la lengua española VOX, Barcelona: Larousse Editorial, p. s.v. mientras

Related etymologies

Cite this entry

“Mientras.” Etymologically, 7 Nov. 2026, etymologically.com/es/mientras. Accessed 7 Nov. 2026.

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