argumentum ad fidem

US/ɑɹ.ɡjuˈmɛn.təm æd ˈfɪ.dɛm//-tum-//-ˈfi.dɛm/UK/ɑːɡjuːˈmɛntəm æd ˈfɪdɛm/

noun

A fallacious argument that asserts the truth of a proposition by an appeal to pious testimony or religious revelation.

“For quotations using this term, see Citations:argumentum ad fidem.”

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Meanings

nounargumentum ad fidem (plural argumenta ad fidem)

plural argumenta ad fidem

  1. rhetoricA fallacious argument that asserts the truth of a proposition by an appeal to pious testimony or religious revelation.

    For quotations using this term, see Citations:argumentum ad fidem.

Origin

Latin: argūmentum (“argument”, “proof”) + ad (“to”, “toward”) + fidem (accusative singular of fidēs, “faith”, “belief”) ≈ “appeal to faith”

Full word history & related roots →
Cite this entry
APA

argumentum ad fidem. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/argumentum%20ad%20fidem

MLA

“argumentum ad fidem.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/argumentum%20ad%20fidem. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “argumentum ad fidem,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/argumentum%20ad%20fidem.

Source: argumentum ad fidem on Wiktionary, CC BY-SA 4.0.