“Ex Cathedra: Pronounced from the seat or authority or by the right of one’s office, as by a papal declaration; authoritatively judgmental, sometimes without explanation or justification; presumptuous. Adverb: ex cathedra.
‘Both stamped Irving’s ‘Hughes’ samples as authentic, and both spoke forth with the certainty of the Holy Father making a pronouncement ex cathedra.’ James Phelan, Scandals, Scamps and Scoundrels
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