Etymologically

frauduleux

Etymology and origin of the French word frauduleux

Confidence
Established
Formation
Borrowing
First attested
1365 Nicole Oresme, Traictié des monnoies More words from the 14th century
Borrowed from
Latin fraudulosus
Ultimate origin
Latin fraus

Pronunciation

  • /fʁo.dy.lø/[1]

Forms

frauduleux (feminine frauduleuse, masculine plural frauduleux, feminine plural frauduleuses)[1] Middle French also had fraudeleux (15th century).[2]

Etymology

It is borrowed from Late Latin fraudulōsus (“fraudulent”), a Late Latin legal word,[3][4][1] from fraus (“fraud”).[2][5] Bloch and Wartburg note that it was borrowed to serve as the adjective of fraude.[6]

Earliest recorded meaning

The first record is in Nicole Oresme's treatise on money, where exaction frauduleuse is a levy tainted by fraud; the TLFi dates the passage to 1365, while the Robert dictionaries, the GLLF and Rey give about 1361.[3][5][4][7] Littré quotes marchiés frauduleux “fraudulent dealings” from Oresme.[2]

Semantic evolution

From the start the adjective described acts and things tainted by fraud.[3][7] About 1560 Ambroise Paré applied it to people, “given to fraud, deceitful”, a use the TLFi and GLLF now call old or classical.[4][2][3] By 1764 Voltaire used it of things in the sense “false, falsified”, also now dated.[4][8]

In law, banqueroute frauduleuse (1675) is a bankruptcy in which the debtor has hidden or diverted assets, and a banqueroutier frauduleux is one guilty of it.[4][8][2] Littré also gives the sense “evading customs or excise duties”.[2] The adverb frauduleusement followed about 1398.[7]

Timeline

  • 1365 – Nicole Oresme uses it in his treatise on money (about 1361 in the Robert dictionaries and Rey).[5][7][3]
  • 15th century – A text on Louis XI has the form fraudeleux.[2]
  • c. 1398 – The adverb frauduleusement is recorded.[7]
  • c. 1560 – Paré applies it to deceitful people.[4][2]
  • 1675 – Banqueroute frauduleuse is recorded.[4]
  • 1764 – Voltaire uses it in the sense “false, falsified”.[4]

Meanings

Adjective

  1. Tainted by fraude, fraudulent: une vente frauduleuse, un commerce frauduleux.[8][3]
  2. (law) Banqueroute frauduleuse: fraudulent bankruptcy, banqueroutier frauduleux: a debtor guilty of it.[8][4]
  3. Intention frauduleuse: the intention of getting round the law or of deceiving someone.[8]
  4. (dated) False, falsified: des papiers frauduleux.[8][3]
  5. (old, of people) Given to fraud, deceitful.[3][4]

Word family

  • frauduleusement
  • fraude
  • frauder
  • fraudeur
  • Latin fraus

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  3. ^ 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
  4. ^ a b c d e f g h i j Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  5. ^ a b c Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  6. ^ Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  7. ^ a b c d e Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  8. ^ a b c d e f Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert

Related etymologies

Cite this entry

“Frauduleux.” Etymologically, 15 Nov. 2026, etymologically.com/fr/frauduleux. Accessed 15 Nov. 2026.

Last edited on . ·