Etymologically

Etymology and origin of the Spanish word duro

Confidence
Established
Formation
Inherited
First attested
1205 a charter in Oelschläger's list More words from the 13th century
Inherited from
Latin durus
Ultimate origin
Latin dūrus
Etymology tree
inherited borrowed derived
Latin dūrus
French dur
Italian duro
Spanish duro
From the same root
Latin dūrē ← dūrus
Latin dūritia ← dūrus
Latin dūrō ← dūrus
Latin indūrō ← dūrus
Latin obdūrēscō ← dūrus

Pronunciation

  • /ˈduɾo/, [ˈd̪u.ɾo][1]

Forms

duro (feminine dura, masculine plural duros, feminine plural duras, superlative durísimo)[1]

Etymology

It is inherited from Latin dūrus (“hard”).[2][3][4][1] Old Spanish had the same form, duro.[1][5]

The same word is Portuguese duro, Galician duro, Catalan dur, Occitan dur, French dur, Italian duro, Sardinian duru and Romanian dur.[6][7][1] The adverbs adur, de dur and a duro “hardly, with difficulty”, frequent in Berceo, are explained by Corominas as a cross of the last two phrases with a preliterary adverb *dur, from dūrē (“harshly”).[2] a duras penas arose from a duras combined with apenas.[2]

The origin of the Latin word is disputed.[8] De Vaan and Wiktionary derive it from *duh₂-ró- (“long”), which is also the source of Ancient Greek δηρός (dērós, “long”) and Sanskrit दूर (dūrá, “far, long”).[9][1] Wiktionary notes that this meets semantic problems, while De Vaan holds that the verb dūrō developed from “to be hard” to “to endure, last”.[1][9] The OLD and Gómez de Silva prefer an older form *drūros, connected with Lithuanian drūtas (“strong”) and Irish dron (“firm”), from the root of words for “tree” and “wood”, but the dissimilation it requires is not otherwise attested.[10][11][12]

The noun for the coin is a clipping of peso duro, the silver peso worth twenty reales.[13][14]

Earliest recorded meaning

Corominas dates the word to a charter of 1205 in Oelschläger's list, and to Berceo.[2][3] In Berceo it also means “bad, evil” and, of a rope, “strong”; the Libro de Alexandre has en duro punto “at an evil hour”.[2] Alfonso X's prose uses it of hard things such as stones and metals, of bodies hardened to toil, of harsh terms and of cruel anger.[15]

Semantic evolution

The figurative senses “hard to bear”, “cruel” and “stubborn” were present from the start; the Libro de buen amor already speaks of pesos duros.[5][2] Autoridades (1732) defines duro as what is solid and breaks with difficulty, then by likeness stale bread and hard-boiled eggs, and figuratively “unbearable” and “cruel”.[16]

As a noun duro named the silver peso of twenty reales in Domínguez (1846) and in the Academy's 1869 edition.[17][14] The DLE now defines it, for Spain, as the five-peseta coin.[4] The 1869 edition also records the adverb, ¡dale duro! “hit him hard!”.[14]

In the Americas duro means “drunk” in Mexico and Uruguay and “stingy” in many countries, duro y parejo means “steadily and hard”, and as an adverb it means “loudly” in Central America and the Caribbean.[18][19] In Panama a duro is a frozen soft drink.[4][19]

Timeline

  • 1205 – first record, in a charter.[2][3]
  • c. 1230–1260 – Berceo uses duro and the adverbs adur and de dur.[2][5]
  • 1250–1280 – Alfonso X's prose has the physical and the figurative senses.[15]
  • 1438 – first record of endurecer, and dureza follows in 1490.[3]
  • 1533 – first record in the Americas, a duras penas in Nicaragua.[20]
  • 1591 – Percyvall glosses it “hard, cruell, niggardly”.[21]
  • 1846 – Domínguez records the noun for the silver coin of twenty reales.[17]
  • 1869 – the Academy records the coin and the adverb duro.[14]

Meanings

Adjective

  1. hard: resisting cutting, scratching, pressure or a change of shape.[4][1]
  2. Less soft or tender than it should be, as stale bread or a hard bed.[4][22]
  3. tough, resilient: standing up well to fatigue.[4][1]
  4. Harsh, severe, lacking gentleness: una crítica muy dura.[4][1]
  5. Strict, uncompromising, hard to tolerate, as la línea dura of a party.[4]
  6. Cruel, violent, unfeeling.[4][1]
  7. stubborn, obstinate.[4]
  8. stingy, giving only with reluctance.[4][19]
  9. Of style or drawing: stiff, rigid.[4]
  10. (Bolivia, Mexico, Uruguay) drunk.[4][18]

Adverb

  1. Hard, with force: trabajar duro.[23][22]
  2. (Central America, Caribbean, Colombia) Loudly.[19]

Noun

  1. (Spain) A five-peseta coin; formerly the silver peso of twenty reales.[4][14]
  2. (Panama) A frozen soft drink.[4][19]

Word family

  • dureza
  • durillo
  • endurecer
  • cabeciduro

Usage notes

Set phrases include a duras penas “with great difficulty” and a las duras y a las maduras “in good times and bad”.[23][1] A separate word duro, the Taíno duho, a low carved seat of the caciques, survives in Venezuela as a wooden stool.[2][24][25]

References

  1. ^ a b c d e f g h i j k l Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 2, 538
  3. ^ a b c d Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. duro
  4. ^ a b c d e f g h i j k l m n o 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. duro
  5. ^ a b c Boggs, R. S.; Kasten, Lloyd; Keniston, Hayward; Richardson, H. B. (1946), Tentative Dictionary of Medieval Spanish, 2 vols., Chapel Hill, N.C., p. s.v. duro
  6. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  7. ^ 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. 3, 221
  8. ^ Bénaben, Michel (2000), Dictionnaire étymologique de l'espagnol, Paris: Ellipses, p. s.v. duro
  9. ^ a b de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  10. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  11. ^ Gómez de Silva, Guido (1988), Breve diccionario etimológico de la lengua española, México: Fondo de Cultura Económica / El Colegio de México, p. 241
  12. ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. dur
  13. ^ Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. duro
  14. ^ a b c d e Real Academia Española (1869), Diccionario de la lengua castellana, 11th ed., Madrid: Imprenta de Don Manuel Rivadeneyra, p. 293
  15. ^ 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. duro
  16. ^ Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 3, 353
  17. ^ a b Domínguez, Ramón Joaquín (1846–1847), Diccionario nacional o gran diccionario clásico de la lengua española, 2 vols., Madrid: Establecimiento Léxico-Tipográfico de R. J. Domínguez, p. 649
  18. ^ a b Malaret, Augusto (1946), Diccionario de americanismos, 3rd ed., Buenos Aires: Emecé, p. 374
  19. ^ a b c d e Asociación de Academias de la Lengua Española (2010), Diccionario de americanismos, Lima: Santillana; online at https://www.asale.org/damer, p. s.v. duro
  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. duro
  21. ^ Percyvall, Richard (1591), Bibliothecae Hispanicae pars altera: containing a dictionarie in Spanish, English and Latine, London: John Jackson for Richard Watkins, p. 123
  22. ^ a b Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. duro
  23. ^ 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. 404
  24. ^ Alvarado, Lisandro (1921), Glosario de voces indígenas de Venezuela, Caracas: Victoria, p. 133
  25. ^ Santamaría, Francisco J. (1942), Diccionario general de americanismos, 3 vols., México: Pedro Robredo, p. 584

Related etymologies

Cite this entry

“Duro.” Etymologically, 7 Nov. 2026, etymologically.com/es/duro. Accessed 7 Nov. 2026.

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