A mumpsimus ( MUHMP-sih-məs) is a "traditional custom obstinately adhered to however unreasonable it may be", or "someone who obstinately clings to an error, bad habit or prejudice, even after the foible has been exposed and the person humiliated; also, any error, bad habit, or prejudice clung to in this fashion". The term originates in the story of a priest using the nonsense word mumpsimus instead of the Latin sumpsimus when giving mass, and refusing to be corrected on the matter.
A mumpsimus ( MUHMP-sih-məs) is a "traditional custom obstinately adhered to however unreasonable it may be", or "someone who obstinately clings to an error, bad habit or prejudice, even after the foible has been exposed and the person humiliated; also, any error, bad habit, or prejudice clung to in this fashion". The term originates in the story of a priest using the nonsense word mumpsimus instead of the Latin sumpsimus when giving mass, and refusing to be corrected on the matter.
Source: Wikipedia "Mumpsimus" · CC BY-SA 4.0
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