Etymologically

Etymology and origin of the Spanish word sudor

Confidence
Established
Formation
Inherited
First attested
1218–1250 Fuero de Zorita de los Canes More words from the 13th century
Inherited from
Latin sudor
Ultimate origin
Proto-Indo-European *sweyd-
Etymology tree
inherited borrowed derived
Latin sūdor
French sueur
Spanish sudor

Pronunciation

  • /suˈdoɾ/, [suˈð̞oɾ][1]

Forms

sudor m (plural sudores)[1] Old Spanish had both suor, the popular form, and sudor: Berceo's Milagros has suor, and the Alfonsine texts write suor.[2][3][4]

Etymology

It is inherited from Latin sudor (“sweat”).[5][2][1] The inherited form was Old Spanish suor, with the loss of the Latin /d/ between vowels, as in Portuguese suor and Galician suor; the modern form kept or restored the /d/ under the influence of the Latin word, and in time replaced the popular one.[1][6] García de Diego calls it a learned word, and Autoridades already called it “purely Latin”.[6][7]

The same Latin word is Catalan suor, French sueur, Italian sudore and Romanian sudoare.[8]

The Latin noun belongs with sūdō (“to sweat”).[9] It goes back to Proto-Italic *swoidōs and the root Proto-Indo-European *sweyd- (“to sweat”), and its cognates include Ancient Greek ἱδρώς (hidrṓs, “sweat”), Old High German sweiz and Old English swāt, the source of English sweat.[10][1] De Vaan explains the Latin vowel either by a sound change of ⟨swei-⟩ to ⟨swoi-⟩ or by the o-grade of the verb carried into the noun.[10]

Earliest recorded meaning

Corominas's first record is Berceo.[2][11] The CDH has a slightly earlier text, the Fuero de Zorita de los Canes (1218–c. 1250), where it means the fruit of one's labour: todo lo que gane de mi sudor “all that I earned by my sweat”.[12] Its earliest hit, of 1218, is a Latin word in a Latin charter, not the noun.[12]

Semantic evolution

The sense “toil, hard work” is as old as the word, and the Alfonsine texts use suor both for sweat and for drops oozing from damp things.[3][12] Autoridades defines it as the moisture that leaves the body through the pores, and adds the figurative “labour and fatigue” and the gums that trees exude.[7] From 1843 the Academy recorded the plural sudores for a sweating cure, especially for syphilis, a sense the DLE now marks as obsolete.[13][5] In Colombia sudor is a hot drink that makes the patient sweat, and in Cuba a sudorific potion.[14][2]

Timeline

  • 1218–c. 1250 – the Fuero de Zorita de los Canes has mi sudor “my labour”.[12]
  • 1220–1250 – Berceo, Corominas's first record; the Milagros also have suor.[2][11]
  • 1250–1279 – the Lapidario of Alfonso X writes suor.[3]
  • c. 1495 – Nebrija gives Latin sudor and mador.[15]
  • 1545 – first record in the Americas, in Chile, for hard labour.[16]
  • 1726–1739 – Autoridades calls the word purely Latin.[7]
  • 1843 – the Academy adds the plural sense “sweating cure”.[13]

Meanings

Noun

  1. sweat: the clear liquid given off by the sweat glands of the skin: Tenía la camisa empapada de sudor.[5][1]
  2. The sap or juice that plants exude.[5]
  3. Drops that ooze from rocks or other damp things.[5][17]
  4. toil, hard work and fatigue, often in the plural: Aquella casa le costó muchos sudores.[5][17]
  5. (Colombia, colloquial) A sudorific (sudorífico); a hot drink taken to bring on sweating.[5][14]
  6. (obsolete, in the plural) A sweating cure, especially for venereal disease.[5]

Word family

  • sudoroso
  • sudoriento
  • sudar
  • sudario
  • sudorífico
  • sudoríparo
  • Latin sudor
  • Portuguese suor

Usage notes

Con el sudor de su frente “by the sweat of one's brow” is said of what one earns by one's own work.[17] Sudor frío is a cold sweat.[5]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 5, 325
  3. ^ a b c 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. sudor
  4. ^ Diccionario del Español Medieval electrónico (DEMel), data publication 2026 (CC BY-SA), Universität Rostock, p. s.v. sudor
  5. ^ a b c d e f g h i 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. sudor
  6. ^ a b García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. 6453
  7. ^ a b c Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 6, 175
  8. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  9. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  10. ^ 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
  11. ^ a b Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. sucotrino
  12. ^ 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. sudor
  13. ^ a b Real Academia Española (1843), Diccionario de la lengua castellana, 9th ed., Madrid: Imprenta de D. Francisco María Fernández, p. 680
  14. ^ a b Asociación de Academias de la Lengua Española (2010), Diccionario de americanismos, Lima: Santillana; online at https://www.asale.org/damer, p. s.v. sudor
  15. ^ Nebrija, Antonio de (1513), Vocabulario español-latino, Salamanca, ed. Marina Vidal Díez (2007), Biblioteca Virtual Miguel de Cervantes, p. 419
  16. ^ 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. sudor
  17. ^ a b c Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. sudor

Related etymologies

Cite this entry

“Sudor.” Etymologically, 7 Nov. 2026, etymologically.com/es/sudor. Accessed 7 Nov. 2026.

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