Etymologically

Etymology and origin of the Spanish word siglo

Confidence
Established
Formation
Inherited
First attested
c. 950 Glosas Emilianenses, spelt siéculo More words from the 10th century
Inherited from
Latin saeculum via Old Spanish
Ultimate origin
Latin saeculum
Etymology tree
inherited borrowed derived
Latin saeculum
French siècle
Spanish siglo
Italian secolo
From the same root
German Jahrhundert ← saeculum
Latin saeculāris ← saeculum

Pronunciation

  • /ˈsiɡlo/, [ˈsi.ɣ̞lo][1]

Forms

siglo m (plural siglos)[1] Old Spanish sieglo was the general form in the 12th and 13th centuries;[2] siglo gained ground in the 14th and was the usual form from the 15th.[3][4] Medieval texts also have syglo, seglo, seclo and sieculos.[2]

Etymology

It is inherited from Old Spanish sieglo, inherited from Latin saeculum (“generation; lifetime; age”).[3][4][5][1] Corominas calls it a semi-learned descendant of the Latin word, and Wiktionary notes that a fully popular development would have given a quite different form.[3][1]

The same Latin word is Old Galician-Portuguese segre, Old Occitan secle, French siècle and Italian secolo;[6][7][1] so are Aragonese sieglo and Asturian sieglu.[6][7][1] Coromines calls Catalan segle a half-learned descendant as well, while García de Diego takes the Catalan variant sigle from Spanish.[8][7]

De Vaan traces the Latin noun to *sai-tlo- and *seh₂i-tlo- (“lifespan”), and compares *saitlo-, the source of Welsh and Breton words for “lifespan, age”.[9] Wiktionary connects it with *sh₂ey- (“to bind”), successive generations being linked together, and mentions a rival derivation from *seh₁- (“to sow”); the OLD calls the origin doubtful.[1][10]

Earliest recorded meaning

Corominas's first record is siéculo in the Glosas Emilianenses, of about 950.[3] The Liber Regum (c. 1194–1211, in an early 13th-century copy) uses sieglo for life on earth: Visco Enoch en aquest sieglo ccclxx annos “Enoch lived in this world 370 years”.[11] In the Cantar de mio Cid (c. 1140, in a 14th-century copy) a los días del sieglo means “for ever”.[11]

Semantic evolution

Corominas notes that the commonest old senses were “life on earth” and “the world”, and also “eternal life” (sieglo mayor in the Libro de Alexandre).[3] The Fuero de Zorita speaks of monks who renounce el sieglo “the world”.[11] From this sense comes seglar “layman” (1212).[4] Alfonso X's prose already has the four main senses: a hundred years, a very long time, lay life as opposed to religious life, and the earthly world.[12]

Nebrija defined it as a space of a hundred years, and Covarrubias explained it as the full age of a man, adding that siglo is the worldly life as opposed to the religious one.[13][14] In Cervantes por el siglo de mi madre swears by the eternal rest of one's mother.[15] The Diccionario de Autoridades gave the hundred years, the age of a thing, and the hyperbolic “a very long time”.[16] Moliner records Siglo de Oro, the golden age of Spanish literature, el siglo de las luces and por los siglos de los siglos “for ever and ever”.[17] In Andalusia del siglo means “the best, the most remarkable”.[18] The word passed into Tagalog, Cebuano and Papiamentu.[1]

Timeline

  • c. 950 – the Glosas Emilianenses have siéculo.[3]
  • c. 1140 – the Cantar de mio Cid has sieglo.[11][4]
  • c. 1194–1211 – the Liber Regum uses it for life on earth.[11]
  • 1212 – first record of the derivative seglar.[4]
  • 1270–1284 – the Estoria de España uses sieglo for a hundred years.[12]
  • 14th century – the form siglo gains ground, in Juan Ruiz among others.[3][4]
  • c. 1495 – Nebrija defines it as a space of a hundred years.[13]
  • 1564 – first record from the Americas, in Mexico, of worldly people, los del siglo.[19]
  • 1611 – Covarrubias explains it as the full age of a man.[14]
  • 1726–1739 – the Diccionario de Autoridades gives the sense “a very long time”.[16]

Meanings

Noun

  1. A century, a period of a hundred years.[5][1]
  2. Each of the hundred-year periods counted from the start of the Christian era: Cervantes murió a comienzos del siglo XVII.[5][1]
  3. The age in which someone flourished or something notable happened: el siglo de Luis XIV.[5][17]
  4. The world of lay life, as opposed to religious life: En el siglo se llamaba Ana Ruiz.[5][17]
  5. (colloquial) A very long time: Hace siglos que no nos vemos.[5][1]

Word family

  • seglar
  • secular
  • secularizar
  • Latin saeculum
  • Catalan segle

Usage notes

Fixed phrases include Siglo de Oro and por los siglos de los siglos.[17][1] Centuries are written with Roman numerals: el siglo XV.[5]

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 Diccionario del Español Medieval electrónico (DEMel), data publication 2026 (CC BY-SA), Universität Rostock, p. s.v. siglo
  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. 5, 245
  4. ^ a b c d e f Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. siglo
  5. ^ 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. siglo
  6. ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  7. ^ a b c García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. 5815
  8. ^ 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. 7, 735
  9. ^ 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. ^ 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. siglo
  12. ^ 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. siglo
  13. ^ a b Nebrija, Antonio de (1513), Vocabulario español-latino, Salamanca, ed. Marina Vidal Díez (2007), Biblioteca Virtual Miguel de Cervantes, p. 416
  14. ^ a b Covarrubias Orozco, Sebastián de (1611), Tesoro de la lengua castellana o española, Madrid: Luis Sánchez (Biblioteca Wordkers transcription, CC BY 4.0), p. 1298
  15. ^ Cejador y Frauca, Julio (1905–1906), La lengua de Cervantes: gramática y diccionario de la lengua castellana en El ingenioso hidalgo don Quijote de la Mancha, 2 vols., Madrid: Jaime Ratés, p. 1034
  16. ^ a b Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 6, 110
  17. ^ a b c d Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. siglo
  18. ^ Alcalá Venceslada, Antonio (1951), Vocabulario andaluz, Madrid: Real Academia Española, p. 576
  19. ^ 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. siglo

Related etymologies

Cite this entry

“Siglo.” Etymologically, 7 Nov. 2026, etymologically.com/es/siglo. Accessed 7 Nov. 2026.

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