Etymologically

Etymology and origin of the Spanish word muy

Confidence
Established
Formation
Inherited
First attested
c. 1140 Cantar de mio Cid More words from the 12th century
Inherited from
Latin multum via Old Spanish
Ultimate origin
Latin multus
Etymology tree
inherited borrowed derived
Latin multus
Aromanian multu
Italian molto
Spanish mucho
Latin multum
Spanish muy
From the same root
Latin multiformis ← multus
Latin multimodīs ← multus
Latin multiplex ← multus
Latin multiplus ← multus
Latin multitūdō ← multus
Latin multō ← multus
Latin permultus ← multus

Pronunciation

  • /ˈmwi/, [ˈmwi], /ˈmui/[1]
  • Andalusia, dialectal: /ˈmu/, [ˈmu][1]

Forms

muy[1] Old Spanish wrote muy, mui, muyt and muit.[2][3] Popular speech reduces it to mu, and Andalusian has mi.[4][1][5]

Etymology

It continues inherited from Old Spanish muito (“much”), shortened before adjectives and adverbs; the Old Spanish word is inherited from Latin multum (“much”), the adverbial neuter of multus (“much, many”).[6][1][7] The DCECH explains that the Old Spanish word, common to Portuguese and early Castilian, lost its final vowel when it was used proclitically; before a consonant the cluster then no longer developed into the palatal of mucho, as happened in buitre from Latin vultur, and so muit before a consonant was soon reduced to the present form.[3] Before a vowel the 13th century used much, and for a long time speakers used the full form for the short one and the other way round.[3] The cases where the word seems to count as two syllables in Berceo and other early poets are, in Corominas's view, places where 14th-century scribes put the short form in place of the original full one.[3]

Portuguese muito, Catalan molt and the proclitic Asturian mi have the same source.[8]

Earliest recorded meaning

The Cantar de mio Cid (c. 1140, in a 14th-century copy) already has it before an adjective: sobr'ella una sávana de rançal e muy blanca “on it a sheet of fine linen, and very white”.[9] The first record in a text without a later copy is the Cortes de León of 1208, where the king calls himself muy nobre Rey de Leon “most noble King of León”.[9]

Semantic evolution

Old forms like mucho huerte were still used in the late 15th century, and muy mejor “much better” survived longer, into Juan de Valdés.[3] The Academy's 1817 dictionary notes that in formal titles muy ilustre ranks below ilustrísimo, that muy señor mío opens letters, and that with a negation (no es muy prudente) it means “not very”, close to the opposite.[10] Its 1884 edition defined it as the apocope of mucho used before adjectives, participles, adverbs and nouns used as adjectives (muy hombre).[11]

Moliner notes that it is not used with the comparatives (mucho mayor), and that with the article and a word of reproach it forms exclamations (¡el muy bandido!).[4] In Argentina and Uruguay it can stand alone in a reply, for a quality just mentioned.[6]

Timeline

  • c. 1140 – muy blanca in the Cantar de mio Cid.[9]
  • 1208 – muy nobre Rey de Leon in the Cortes de León.[9]
  • 13th century – much before a vowel (much alto) beside muy before a consonant.[3]
  • 14th century – copyists replace mucho with muy before adjectives.[3]
  • 1492 – Nebrija renders several Latin adverbs with mui mucho.[12]
  • 1817 – the Academy's dictionary records muy ilustre and muy señor mío.[10]
  • 1884 – the Academy calls it the apocope of mucho.[11]

Meanings

Adverb

  1. very: before adjectives, adverbs and some prepositional phrases, a high degree of the quality: Este café está muy caliente.[6][1]
  2. (Argentina, Uruguay) Alone, for a high degree of a quality just mentioned: —¿Es cara la entrada? —Muy.[6]
  3. With the article, before a word of reproach or ironic praise, in exclamations: ¡El muy tramposo![4]

Usage notes

It is not used before comparatives, which take mucho (mucho mejor).[4] In Mexico, Nicaragua, Peru, Bolivia and Paraguay muy muy describes someone who acts as if above the others, and ni muy muy ni tan tan means “just right, without excess” in many countries.[13]

References

  1. ^ a b c d e f 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. muy
  3. ^ a b c d e f g Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 4, 178
  4. ^ a b c d Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. muy
  5. ^ Alcalá Venceslada, Antonio (1951), Vocabulario andaluz, Madrid: Real Academia Española, p. 401
  6. ^ 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. muy
  7. ^ Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. mucho
  8. ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. s.v. muy
  9. ^ 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. muy
  10. ^ a b Real Academia Española (1817), Diccionario de la lengua castellana, 5th ed., Madrid: Imprenta Real, p. 592
  11. ^ 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. 729
  12. ^ 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. muy
  13. ^ Asociación de Academias de la Lengua Española (2010), Diccionario de americanismos, Lima: Santillana; online at https://www.asale.org/damer, p. s.v. muy

Related etymologies

Cite this entry

“Muy.” Etymologically, 7 Nov. 2026, etymologically.com/es/muy. Accessed 7 Nov. 2026.

Last edited on . ·