Etymology and origin of the Portuguese word traição
- Confidence
- Established
- Formation
- Inherited
- First attested
- 1200s Cantigas de Santa Maria, spelt trayçon More words from the 13th century
- Inherited from
- Latin traditio
- Ultimate origin
- Latin trādō
Etymology tree
From the same root
Forms
traição f (plural traições)[1] Old Galician-Portuguese wrote trayçon, traiçom, traiçon and traïçon in the 13th century and treyçõ and treyçom in the 14th;[2][3][4] traicam is recorded in the 15th century.[2][3][4]
Etymology
It is inherited from Latin trāditiō (“a handing over, surrender”), written Old Galician-Portuguese trayçon and Old Galician-Portuguese traiçon in the oldest texts.[2][3][1] Aurélio and Caldas Aulete call it a popular word, and Nascentes explains the sense: the traitor hands a person over to the enemy.[5][6][7] The Latin noun is formed from trādō (“to hand over, deliver; to betray”) with the suffix -tiō; the verb is made of trāns- (“across”) and dō (“to give”), from Proto-Indo-European *deh₃- (“to give”).[8][1]
The same Latin word is Galician traizón, Spanish traición, French trahison and Italian tradigione, in the sense “betrayal”.[9][1] Its learned doublet is tradição “tradition”.[1][3]
Earliest recorded meaning
The Cantigas de Santa Maria use it for an act of treachery: fez aquesta trayçon “he committed this treachery”, gran traiçon y penssastes “you plotted great treachery there”, and the devil chẽo de traiçon “full of treachery”.[10][4] The troubadours have the phrase fazer traiçon sobre alguém “to betray someone”.[10] Lorenzo's chronology also refers to an earlier date, 1152, for the form traicion.[4]
Semantic evolution
The Crónica Troiana speaks of the treachery that ruined the speaker's lineage.[4] Bluteau's book of synonyms (1712–1728) pairs traiçam with perfidy, faithlessness and disloyalty.[11] Morais (1813) defines it as the breaking of a promised faith and explains à traição “from behind, treacherously”.[12] Caldas Aulete's original dictionary adds unfaithfulness in love and an ambush.[6]
Modern dictionaries add the legal sense of treason against one's country and, in Brazil (Mato Grosso), a kind of mutirão, collective farm work in which the helpers arrive unannounced at dawn and wake the farmer with songs.[2][5][13] The word passed into Tetum as traisaun.[1]
Timeline
- 13th century – trayçon and traiçon in the Cantigas de Santa Maria.[10][3]
- 14th century – the spelling treyçõ.[3]
- 15th century – the spelling traicam.[2]
- 1593 – a private letter writes treycam.[14]
- 1697 – Pereira's dictionary translates Traição with Latin proditio and insidiae.[15]
- 1858 – first record of traiçoeiro.[3]
Meanings
Noun
- betrayal: the breaking of a promised loyalty by a treacherous act; perfídia, disloyalty.[2][5][1]
- (law) treason: the crime of a citizen who acts against the security of his country.[2][13]
- infidelity in love or marriage: Ela nunca lhe perdoou a traição.[5][1]
- An ambush or unexpected attack;[16][17] à traição “treacherously, from behind”.[16][17]
- (Brazil, Mato Grosso) A mutirão in which the helpers arrive unannounced at dawn, singing, at the house of the person they help.[5][6]
Word family
- atraiçoar
- atraiçoador
- traiçoeiro
Related words
References
- ^ a b c d e f g h i j Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. traição
- ^ a b c d e f g Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. traição
- ^ 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. trayçon
- ^ a b c d e Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. traição
- ^ a b c Aulete, Francisco Júlio Caldas, Dicionário contemporâneo da língua portuguesa (1st ed. 1881), online as Aulete Digital, Rio de Janeiro: Lexikon, https://aulete.com.br, p. s.v. traição
- ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. traição
- ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. trāditiō
- ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 8829
- ^ a b c 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. traiçon
- ^ Bluteau, Raphael (1712–1728), Vocabulario portuguez e latino, 8 vols. + 2 supplement vols., Coimbra / Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. traiçam
- ^ Silva, António de Morais (1813), Diccionario da lingua portugueza, 2nd ed., 2 vols., Lisboa: Typographia Lacerdina, p. 2, 794
- ^ a b 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. traição
- ^ CLUL (ed.) (2014), P.S. Post Scriptum: Arquivo Digital de Escrita Quotidiana em Portugal e Espanha na Época Moderna, Lisboa: Centro de Linguística da Universidade de Lisboa, http://ps.clul.ul.pt, p. s.v. traição
- ^ Pereira, Bento (1697), Thesouro da lingoa portuguesa, in the 1697 edition of his Prosodia (1st ed. 1647; CLP transcription, Universidade de Aveiro), p. s.v. traição
- ^ a b Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. traição
- ^ a b Porto Editora (2013), Grande Dicionário da Língua Portuguesa, Porto: Porto Editora, p. 9088
Related etymologies
Cite this entry
“Traição.” Etymologically, 15 Nov. 2026, etymologically.com/pt/trai%C3%A7%C3%A3o. Accessed 16 Nov. 2026.
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