Etymology and origin of the French word fausser
- Confidence
- Established
- Formation
- Inherited
- First attested
- c. 1100 Chanson de Roland More words from the 11th century
- Inherited from
- Latin falso via Old French
- Ultimate origin
- Latin falsus
Etymology tree
From the same root
Pronunciation
- /fo.se/[1]
Forms
fausser[1] Old French falser; the form fausser appears in the 12th century.[2][3][4] Anglo-Norman also has faucer, faulser and fauxer.[5]
Etymology
It is inherited from Old French falser, inherited from Late Latin falsō (“to falsify, alter”), from falsus (“false”).[6][7][4][1][8]
Cognate with Italian falsare, Occitan falsar, Spanish falsear and Portuguese falsar.[9][10]
Earliest recorded meaning
It first appears as falser in the Chanson de Roland (about 1100), in the feudal sense “to declare a statement false, give the lie to”.[6][4]
Semantic evolution
Medieval French also used it for “to falsify” and “to accuse of falsehood”.[7][4] Of armour it meant “to damage, break through”: Wace writes that the hauberk falsa in 1155.[6][10] From that sense of damage comes fausset (1322), the peg that stops the hole bored in a cask.[7][4]
The sense “to break one's word” appears in the 12th century,[6][4] with fausser sa foi at the end of the 15th century and fausser compagnie before 1565;[2][4][9] fausser compagnie first meant being unfaithful to a company, then leaving without taking leave.[2][4][9] The abstract sense “to distort the truth” goes back to 1273, and jugement faussé is found in 1580.[4]
Timeline
- c. 1100 – Falser “to give the lie to” appears in the Chanson de Roland.[6]
- c. 1135 – Falser a “to break faith with someone” is recorded.[6]
- 1155 – Wace uses it of a damaged hauberk.[6]
- 1273 – It is used for “to distort the truth”.[4][2]
- 1322 – The derivative fausset “cask peg” appears.[7][4]
- 1580 – Montaigne uses it of the judgement.[4][2]
- Before 1565 – Fausser compagnie is first recorded.[6][4]
- 1792 – The derivative se défausser appears.[4]
Meanings
Verb
- To distort or falsify something abstract; to make (a result, a calculation) inaccurate.[11][1] Une seule erreur a faussé toute l'enquête.[11][1]
- To warp or impair the soundness of (the mind, the judgement).[11] Ces préjugés lui ont faussé le jugement.[11]
- To bend or damage (a mechanism, a key, a lock) by excessive force.[11]
- Fausser compagnie (à quelqu'un): to leave someone abruptly or without warning.[11][9]
- (Canada, familiar, intransitive) To sing out of tune.[11]
Word family
- fausset
- défausser
Related words
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
- ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
- ^ a b c d e f g h i j k l m n Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
- ^ Anglo-Norman Dictionary (AND2), Aberystwyth University, anglo-norman.net (2nd ed., 2005–)
- ^ a b c d e f g h 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 c d Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
- ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 3, 393a
- ^ a b c d Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
- ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
- ^ a b c d e f g Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
Related etymologies
Cite this entry
“Fausser.” Etymologically, 14 Nov. 2026, etymologically.com/fr/fausser. Accessed 15 Nov. 2026.
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