mendacity

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English[edit]

Etymology[edit]

From Late Latin mendacitas, from Latin mendāx (deceitful, deceptive, lying) +‎ -itās (suffix forming nouns indicating a state of being). Mendāx is derived from mentior (to deceive, lie) (from mēns, mentis (mind; intellect; judgment, reasoning), from Proto-Indo-European *méntis (thought)) + -āx (suffix forming adjectives expressing a tendency or inclination), or from Proto-Indo-European *mend- (to fault).

Pronunciation[edit]

Noun[edit]

mendacity (countable and uncountable, plural mendacities)

  1. (uncountable) The fact or condition of being untruthful; dishonesty.
    • 1817, Jeremy Bentham, “Swear Not at All. Mat[thew] v. 34.”, in “Swear Not at All:” Containing an Exposure of the Needlessness and Mischievousness, as well as Antichristianity, of the Ceremony of an Oath: [...], London: Sold by R. Hunter, St. Paul's Churchyard, OCLC 1003661846, § 14 (Succedanea—True Securities Substitutible to this False One), pages 75–76:
      Mendacity is not a uniform offence: it changes its colour according to the nature and substance of the offence to which it is rendered or endeavoured to be rendered subservient. Mendacity, employed in drawing down upon an innocent head the destroying sword of justice, is murder: murder, encompassed with all its correspondent terror. Mendacity, employed in the obtainment of money, is but depredation. Yet, while predatory mendacity is punished with death, the punishment for the murderous mendacity is in comparison but a flea-bite.
    • 1843, John Stuart Mill, “Of the Grounds of Disbelief”, in A System of Logic, Ratiocinative and Inductive, Being a Connected View of the Principles of Evidence, and the Methods of Scientific Investigation. [...] In Two Volumes, London: John W[illiam] Parker, West Strand, OCLC 5357565, § 5, page 196:
      [] Treating the assertion of the witness as the effect, he [Pierre-Simon Laplace] considers as its two possible causes, the veracity or mendacity of the witness on the particular occasion, that is, the truth or falsity of the fact.
    • 1955 March 24 (first performance), Tennessee Williams [pseudonym; Thomas Lanier Williams III], Cat on a Hot Tin Roof, published in Jack Gaver, editor, Critics’ Choice: New York Drama Critics’ Circle Prize Plays 1935–55, New York, N.Y.: Hawthorn Books, 1955, OCLC 726450058, Act II, page 652, column 2:
      Big Daddy: [] Think of all the lies I got to put up with!—Pretenses! Ain't that mendacity? Having to pretend stuff you don't think or feel or have any idea of?
    • 2017 March 27, “The Observer view on triggering article 50: As Britain hurtles towards the precipice, truth and democracy are in short supply”, in The Observer[1], London, archived from the original on 17 May 2017:
      So now the hard Brexiters say, with astonishingly cynical mendacity, that Britain would be better off going it alone.
  2. (countable) A deceit, falsehood, or lie.
    • 1858, Thomas Carlyle, “Visit to Dresden”, in History of Friedrich II. of Prussia, Called Frederick the Great. [...] In Four Volumes, volume II, London: Chapman and Hall, 193 Piccadilly, OCLC 3161094, book VI, page 30:
      The scandalous bronze-lacker age, of hungry animalisms, spiritual impotencies and mendacities, will have to run its course, till the Pit swallow it.
    • 1875, John Howard Hinton; Samuel L[orenzo] Knapp; John O. Choules; William A. Crafts, chapter CXXXIII, in History of the United States of America, from the First Settlement of the Country. By John Howard Hinton, A.M. With Additions by Samuel L. Knapp, Esq., and John O. Choules, D.D. And a Continuation from the Inauguration of President Pierce to the Inauguraion of President Grant. By William A. Crafts, A.M., volume III, Boston, Mass.: Samuel Walker and Company, OCLC 185489203, page 481, column 1:
      Though the rebels had utterly failed in their purposes, having accomplished nothing but the temporary disabling of two lightly armed vessels, and had retreated before the approach of the only formidable vessel there, they formally, and with a mendacity equalled only by some of their own efforts in that direction, proclaimed that they had "driven out of sight, for a time, the entire hostile fleet," and that the blockade of the port of Charleston was raised.

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