Etymology and origin of the Portuguese word juramento
- Confidence
- Established
- Formation
- Inherited
- First attested
- 1228 a document, spelt iuramento More words from the 13th century
- Inherited from
- Latin iuramentum
- Ultimate origin
- Latin iūs
Etymology tree
From the same root
Forms
juramento m (plural juramentos)[1] Old Galician-Portuguese wrote iuramento, juramento and juramẽto.[2][3][4]
Etymology
It is inherited from Late Latin iūrāmentum (“oath”), written Old Galician-Portuguese iuramento in the oldest texts.[5][3][6][1][2] Wiktionary notes that it can also be analysed as jurar with the suffix -mento.[1]
The same Latin word is Galician xuramento, Spanish juramento, Catalan jurament, French jurement, Italian giuramento and Romanian jurământ.[7][1] The Spanish word is recorded from 1045.[8]
The Latin noun is formed from Latin iūrō (“to swear”) with the suffix -mentum, and the verb from iūs (“law; ritual formula”).[1][9][10] Wiktionary traces it further to Proto-Indo-European *h₂yew-.[1]
Earliest recorded meaning
Latin laws of 1188–1230 already have qui iuramento fecerit “who has sworn an oath”.[2] In the vernacular a document of 1228 has ouueron per sy iuramento “they took an oath”, and the inquiries of 1258–1261 order a matter to be examined por juramento, under oath.[2] The sense is the same as today: a solemn statement or promise made with God as witness.[2][4]
Semantic evolution
Medieval notarial books describe the oath as taken with a hand on the Gospels and the sign of the cross: in Noia in 1332 a party swears per este notario aos Santos Auãgeos “by this notary on the Holy Gospels”.[4] The Crónica Troiana uses it for the sworn pledges of a treaty.[4]
Bluteau (1712–1728) defines it as calling God to witness that one speaks the truth, explicitly or by swearing by his creatures.[11] Morais (1789) distinguishes the assertory and promissory oath, the threatening oath, and the judicial, extrajudicial and suppletory oaths of the courts.[12] Modern Portuguese adds the military juramento de bandeira and the Hippocratic oath of new doctors.[13][14][6]
Timeline
- 1188–1230 – iuramento in Latin laws.[2]
- 1228 – ouueron per sy iuramento in a vernacular document.[2]
- 1261 – por juramento in the royal inquiries.[2]
- 1317 – Machado's first record.[2]
- 1332 – oaths on the Gospels in the notarial book of Noia.[4]
- 1446 – first record in the CTA corpus, in the Dez Mandamentos da Ley de Moisés.[15]
- 1789 – Morais lists the kinds of oath in law.[12]
Meanings
Noun
- The act of swearing (jurar); a jura.[3][6][14]
- A solemn statement or promise that calls on something sacred, or a recognised moral value, as a pledge of good faith; an oath.[3][6][13][1]
- A solemn commitment made in public, and the formula in which it is spoken.[3][13][14]
- (military) The commitment of soldiers to defend their country, and the ceremony in which they make it: juramento de bandeira.[13][14]
- (law) A sworn statement before a judge, such as the litigant's oath that he does not sue in bad faith.[13][14][16]
Related words
- jurar
- jura
- perjúrio
- Latin iūrāmentum
- Spanish juramento
Usage notes
The juramento hipocrático is the code of medical ethics sworn by new doctors, and a juramento de sangue is a blood pact.[3][6]
References
- ^ a b c d e f g h i Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i Instituto da Lingua Galega, Dicionario de dicionarios do galego medieval (DDGM), ed. Ernesto González Seoane, Santiago de Compostela: Universidade de Santiago de Compostela, https://ilg.usc.gal/ddgm, p. s.v. iuramento
- ^ a b c d e f Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. juramento
- ^ a b c d e Instituto da Lingua Galega, Dicionario de dicionarios do galego medieval (DDGM), ed. Ernesto González Seoane, Santiago de Compostela: Universidade de Santiago de Compostela, https://ilg.usc.gal/ddgm, p. s.v. juramento
- ^ Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. juramento
- ^ a b c d e Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. juramento
- ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 4629
- ^ Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. jurar
- ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. iūrō
- ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. jurer
- ^ Bluteau, Raphael (1712–1728), Vocabulario portuguez e latino, 8 vols. + 2 supplement vols., Coimbra / Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. juramento
- ^ a b Silva, António de Morais (1789), Diccionario da lingua portugueza composto pelo padre D. Rafael Bluteau, reformado, e accrescentado, 2 vols., Lisboa: Simão Thaddeo Ferreira, p. 1, 747
- ^ a b c d e Academia das Ciências de Lisboa, Dicionário da Língua Portuguesa, revised online edition (2023–) of the Dicionário da Língua Portuguesa Contemporânea (2001), https://dicionario.acad-ciencias.pt, p. s.v. juramento
- ^ a b c d e Porto Editora (2013), Grande Dicionário da Língua Portuguesa, Porto: Porto Editora, p. 5508
- ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. juramento
- ^ Michaelis: Moderno Dicionário da Língua Portuguesa, São Paulo: Melhoramentos (online as Michaelis Dicionário Brasileiro da Língua Portuguesa, https://michaelis.uol.com.br), p. s.v. juramento
Related etymologies
Cite this entry
“Juramento.” Etymologically, 15 Nov. 2026, etymologically.com/pt/juramento. Accessed 16 Nov. 2026.
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