Etymologically

Etymology and origin of the Spanish word sinuoso

Confidence
Established
Formation
Borrowing
First attested
1588 a text from the New Kingdom of Granada More words from the 16th century
Borrowed from
Latin sinuosus
Ultimate origin
Latin sinuōsus
Etymology tree
inherited borrowed derived
Latin sinus
French sein
Italian seno
Romanian sân
Spanish seno
English sine
English sinus
Latin sinuōsus
English sinuous
Spanish sinuoso
From the same root
Latin īnsinuō ← sinus
Latin sinuō ← sinus
English cosine ← sine

Pronunciation

  • /siˈnwoso/, [siˈnwo.so][1]

Forms

sinuoso (feminine sinuosa, masculine plural sinuosos, feminine plural sinuosas)[1]

Etymology

It is borrowed from Latin sinuōsus (“full of bends, winding”).[2][1][3] The Latin adjective is formed from sinus (“curve, fold, bosom”) and the suffix -ōsus.[4][5] The DCECH lists it among the learned words beside seno, the inherited descendant of the same Latin noun.[3]

The same Latin word is Catalan sinuós, Portuguese sinuoso, French sinueux and Italian sinuoso.[6][7][8][9] French borrowed it in 1539, first as a medical word for a narrow, deep and winding ulcer.[8]

Earliest recorded meaning

Boyd-Bowman's first record is from the New Kingdom of Granada in 1588, where velas sinuosas are sails swelling into curves.[10] The DCECH gives Góngora as its first author, and the Diccionario de Autoridades quotes his panegyric to the Duke of Lerma, where a sinuosa vela, a billowing sail, hides the day from the Thames.[3][11] Segura dates the word to the beginning of the 17th century.[12]

Semantic evolution

Autoridades defined it as twisted or full of folds, and Terreros as winding, turning now one way and now another.[11][13] American texts use it for mines in 1792 and for a river in 1845.[10] The current dictionary has a figurative sense too, said of an action that hides its aim;[2][14] Moliner applies it to a way of acting or speaking that uses indirect, often reprehensible means.[2][14] French sinueux acquired the same figurative sense, recorded there in 1898.[8]

Timeline

  • 1588 – velas sinuosas in the New Kingdom of Granada.[10]
  • early 17th century – Góngora uses it in his panegyric to the Duke of Lerma.[3][11][12]
  • 1739 – the Diccionario de Autoridades defines it and gives the Latin source.[11]
  • 1786–1793 – Terreros gives French sinueux and Italian sinuoso as equivalents.[13]
  • 1845 – a river in Chile is described as poco sinuoso.[10]
  • 1884 – the Academy's dictionary gives the etymology from Latin.[15]

Meanings

Adjective

  1. winding, sinuous: having curves, bends or turns: El sendero sube sinuoso entre los pinos.[2][14]
  2. (figurative) Of an action or a person: devious, hiding its true purpose.[2][14]

Word family

  • sinuosidad

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e 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. sinuoso
  3. ^ a b c d Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 5, 205
  4. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. sinuōsus
  5. ^ Gómez de Silva, Guido (1988), Breve diccionario etimológico de la lengua española, México: Fondo de Cultura Económica / El Colegio de México, p. s.v. sinuoso
  6. ^ Alcover, Antoni M.; Moll, Francesc de B. (1930–1962), Diccionari català-valencià-balear, 10 vols., Palma de Mallorca: Moll, p. s.v. sinuós
  7. ^ Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. sinuoso
  8. ^ a b c Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. sinueux
  9. ^ Echegaray, Eduardo de (1887–1889), Diccionario general etimológico de la lengua española, 5 vols., Madrid: José María Faquineto, p. 345
  10. ^ a b c d 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. sinuoso
  11. ^ a b c d Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 6, 120
  12. ^ a b Segura Munguía, Santiago (2001), Nuevo diccionario etimológico latín-español y de las voces derivadas, Bilbao: Universidad de Deusto, p. s.v. sinuosus
  13. ^ a b Terreros y Pando, Esteban de (1786–1793), Diccionario castellano con las voces de ciencias y artes y sus correspondientes de las tres lenguas francesa, latina e italiana, 4 vols., Madrid: Viuda de Ibarra, p. 3, 501
  14. ^ a b c d Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. sinuoso
  15. ^ Real Academia Española (1884), Diccionario de la lengua castellana, 12th ed., Madrid: Imprenta de D. Gregorio Hernando (the first Academy edition with etymologies), p. 979

Related etymologies

Cite this entry

“Sinuoso.” Etymologically, 14 Nov. 2026, etymologically.com/es/sinuoso. Accessed 14 Nov. 2026.

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