Etymology and origin of the Spanish word sincero
- Confidence
- Established
- Formation
- Borrowing
- First attested
- c. 1235 Berceo, Vida de San Millán More words from the 13th century
- Borrowed from
- Latin sincerus
- Ultimate origin
- Latin sincērus
From the same root
Pronunciation
- /sinˈθeɾo/, [sĩn̟ˈθe.ɾo], /sinˈseɾo/[1]
Forms
sincero (feminine sincera, masculine plural sinceros, feminine plural sinceras)[1]
Etymology
It is a learned word, borrowed from Latin sincērus (“sound, whole, pure”), first found in Berceo.[2][3][4][1] De Vaan reconstructs Proto-Italic *sm-kair/so- (“whole, intact”), with the first part sem- (“one”), and connects the second with an adjective meaning “whole” seen in caerimōnia and perhaps in caelum; he calls the further link with Proto-Indo-European *keh₂i-r/so- (“whole”) uncertain.[5] Wiktionary gives that view beside an older one that joins *sem- with *ḱer- (“to grow”).[1] Monlau repeated the ancient explanation “without wax”, said of honey free of comb.[6]
The Latin word survives in popular form in Catalan sencer (“whole, intact”), recorded from 1271, and in Aragonese sencero (“intact”).[7][8] Learned forms like the Spanish one are Italian sincero and French sincère, borrowed in 1441.[1][9]
Earliest recorded meaning
Corominas dates the first record to Berceo, about 1220–1250; the DEMel places it in the Vida de San Millán of about 1235.[2][3][10] The word was rare in the Middle Ages: Alfonso de Palencia defined it as a Latin word with no Castilian equivalent, and Nebrija, Percyvall and Covarrubias lack it.[2]
Semantic evolution
Corominas finds it again in 1589, in Hernando de Castillo;[11] Oudin listed it in 1607 with the senses “simple, pure and clean”, and Cervantes used it repeatedly in the Quijote.[2][11] The Diccionario de Autoridades defines it as “pure, simple and without duplicity”.[12] The physical sense “pure, unmixed” was marked as obsolete by the Academy by 1843, and the DLE keeps it as disused; only the moral sense lives on.[13][4] Since the 17th century the word has spread widely, and it is common in the speech of educated people.[2] In 1579 a Havana inventory used sinseras of empty jars, meaning sound or intact.[14]
Timeline
- c. 1235 – Berceo uses the word in the Vida de San Millán.[10][3]
- 1272 – it appears in the General Estoria.[15]
- 1579 – first record in the Americas, in Havana, of sound jars.[14]
- 1607 – sinceridad is first recorded, in Oudin.[3][2]
- 1677 – sincerar is first recorded.[3]
- 1726–1739 – the Diccionario de Autoridades defines it.[12]
Meanings
Adjective
- sincere, honest: speaking or acting without pretence: Te voy a ser sincero: no me gustó.[4][1][16]
- Genuine, heartfelt (of feelings or words): mi más sincero agradecimiento.[17]
- (obsolete) Pure (puro), unmixed.[4]
Word family
- sinceramente
Related words
- sinceridad
- sincerar
- Catalan sencer
- Latin sincērus
Usage notes
Iriarte and Forner sometimes stressed it on the first syllable, as popular speech did in Chile;[18] Román held to the stress of Latin, of Cervantes and of the Academy, sincero with stress on the second syllable.[18]
References
- ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 5, 255
- ^ a b c d e Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. sincero
- ^ 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. sincero
- ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ Monlau, Pedro Felipe (1856), Diccionario etimológico de la lengua castellana (ensayo), Madrid: Imprenta de la Sociedad Literaria y Tipográfica, p. 412
- ^ 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, 783
- ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. 6142
- ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
- ^ a b Diccionario del Español Medieval electrónico (DEMel), data publication 2026 (CC BY-SA), Universität Rostock, p. s.v. sincero
- ^ a b 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. 1037
- ^ a b Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 6, 118
- ^ Real Academia Española (1843), Diccionario de la lengua castellana, 9th ed., Madrid: Imprenta de D. Francisco María Fernández, p. 669
- ^ a b 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. sincero
- ^ Hispanic Seminary of Medieval Studies (2026), Old Spanish Textual Archive (OSTA): semi-paleographic transcriptions of Old Spanish texts, ed. Francisco Gago Jover et al., https://www.hispanicseminary.org, p. s.v. sincero
- ^ Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. sincero
- ^ Battaner Arias, Paz (dir.) (2017), Diccionario general de la lengua española VOX, Barcelona: Larousse Editorial, p. s.v. sincero
- ^ a b Román, Manuel Antonio (1901–1918), Diccionario de chilenismos y de otras voces y locuciones viciosas, 5 vols., Santiago de Chile: Imprenta de San José, p. 271
Related etymologies
Cite this entry
“Sincero.” Etymologically, 7 Nov. 2026, etymologically.com/es/sincero. Accessed 7 Nov. 2026.
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