ipse dixitとは 意味・読み方・使い方

発音

• (英国発音) IPA: /ˌɪpseɪ ˈdɪksɪt/, /ˌɪpsiː ˈdɪksɪt/
• (米国発音) IPA: /ˌɪpsi ˈdɪksɪt/
• 韻: -ɪksɪt

名詞

ipse dixit (countable and uncountable, plural ipse dixits)

1. (rhetoric) A dogmatic and unproved proposition or dictum that is accepted solely on the authority of someone who is known to have asserted it.
   • 1749, Henry Fielding, “Of the Serious in Writing; and for What Purpose It Is Introduced”, in The History of Tom Jones, a Foundling, volume II, London: A[ndrew] Millar, […], →OCLC, book V, page 113:

     To, avoid, therefore, all Imputation of laying down a Rule for Poſterity, founded only on the Authority of ipſe dixit; for which, to ſay the Truth, we have not the profoundeſt Veneration; […]

   • 1858 August 21, Stephen A. Douglas, parliamentary debates, Ottawa, Illinois:

     Mr. Lincoln has not character enough for integrity and truth, merely on his own ipse dixit, to arraign President Buchanan, President Pierce, and nine Judges of the Supreme Court, not one of whom would be complimented by being put on an equality with him. There is an unpardonable presumption in a man putting himself up before thousands of people, and pretending that his ipse dixit, without proof, without fact, and without truth, is enough to bring down and destroy the purest and best of living men.

2. An authority who makes such an assertion.

同意語

• (unproved dogmatic assertion): ad verecundiam, appeal to authority, ipsedixitism

反意語

• (antonym(s) of “unproved dogmatic assertion”): ad hominem, argumentum ad hominem

派生語

参照

• John A. Simpson and Edmund S. C. Weiner, editors (1989), “ipse dixit”, in The Oxford English Dictionary, 2nd edition, Oxford: Clarendon Press, →ISBN.
• “ipse dixit”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

発音

• (Classical Latin) IPA: [ˈɪp.sɛ ˈdiːk.sɪt]
• (modern Italianate Ecclesiastical) IPA: [ˈip.se ˈd̪ik.sit̪]

成句

ipse dīxit

1. (rhetoric, chiefly Medieval Latin) Used after a statement claimed to be by Aristotle, whose absolute authority made it incontestable.