- Confidence
- Established
- Formation
- Inherited
- First attested
- late 10th century, Passion of Clermont
- Inherited from
- Latin *tradio
- Ultimate origin
- Latin (trādō)
Pronunciation
- IPA: /tʁa.iʁ/[1]
Forms
trahir[1] Old French traïr (1080, Chanson de Roland); trahir from the 15th century, with an ⟨h⟩ written only to separate the vowels.[2][3][4]
Etymology
It continues inherited from Vulgar Latin *trādiō, a remaking of classical Latin trādō (“to hand over, deliver; to betray”) into a verb ending in ⟨-ir⟩, because the Latin verb did not pass easily into French.[2][3][5] The Latin verb is formed from trāns (“across”) and dō (“to give”).[2][6] traître is the French adaptation of the related Latin trāditor.[2] Cognate with Italian tradire, Old Occitan traïr, Catalan trair and Portuguese trair.[3][7][8]
Earliest recorded meaning
The Passion of Clermont (late 10th century) has Per que'm trades in to baisol?, “Why do you betray me with your kiss?”, Christ's words to Judas.[5][2]
Semantic evolution
The Chanson de Roland has Traït vos ad ki à guarder vos out, “the one who was to guard you has betrayed you”.[7] In the 12th century it extended to deserting a loved one for another (Énéas, about 1130), to a thing failing someone (about 1175) and to acting against an ideal (late 12th century).[2][4] In the 16th century it meant breaking a pact (about 1550) and going over to the enemy (1559, Amyot); it took from Latin the sense “to give away a secret” (1580, Montaigne) and, with a thing as subject, “to reveal”.[2][5] Classical tragedy used it for failing someone's cause (1636) and for ingratitude (1640); trahir la confiance de quelqu'un dates from 1671, and “to be the sign of what was hidden” from 1690.[2][4] Haute trahison (1677) is a calque of English high treason.[3]
Timeline
- Late 10th century – Trades in the Passion of Clermont.[5]
- 1080 – Traïr in the Chanson de Roland.[2]
- c. 1130 – Being unfaithful in love, in Énéas.[4][2]
- 15th century – The spelling with ⟨h⟩.[2]
- 1559 – “To go over to the enemy”, in Amyot.[4][2]
- 1580 – “To give away (a secret)”, in Montaigne.[2]
- 1636 – In Corneille.[4]
- 1690 – “To be the sign of”, in Furetière.[4][2]
Meanings
Verb
- To betray, hand over or abandon someone to whom one owes loyalty: Judas trahit Jésus; to go over to the enemy: trahir sa patrie.[9][6]
- To be unfaithful to someone: trahir un ami, trahir sa promesse, trahir la confiance de quelqu'un.[9][7]
- (of a thing) To fail someone.[4][2]
- To reveal, give away: trahir un secret, (of a thing) to betray, be the sign of.[9][2]
- To go against, misrepresent: trahir la vérité, trahir ses sentiments.[7][4]
- Se trahir: to give oneself away: le menteur finit par se trahir.[10]
Word family
- trahison
Related words
- traître
- tradition
- Latin trādō
References
- ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k l m n o p Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
- ^ a b c d Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
- ^ a b c d e f g h i Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
- ^ a b c d Trésor de la langue française informatisé (2004), ATILF – CNRS & Université de Lorraine, atilf.fr/tlfi; electronic version of Imbs, Paul; Quemada, Bernard, eds. (1971–1994), Trésor de la langue française, Paris: CNRS / Gallimard
- ^ a b Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
- ^ a b c d Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
- ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
- ^ a b c Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
- ^ Dictionnaire Le Robert en ligne, dictionnaire.lerobert.com (accessed 2024)
Related etymologies
Cite this entry
“Trahir.” Etymologically, 18 Oct. 2026, etymologically.com/fr/trahir. Accessed 18 Oct. 2026.
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