Sumpsimus

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Adherence to or persistence in using a strictly correct term in rejection of a more common (but technically incorrect) form. countable, uncountable

    "I'll not change my old mumpsimus for your new sumpsimus!"

  2. 2
    a correct expression that takes the place of a popular but incorrect expression wordnet
  3. 3
    A person obstinate or zealous about such correctness; a pedant. countable, uncountable

Example

More examples

"I'll not change my old mumpsimus for your new sumpsimus!"

Etymology

From Latin sumpsimus, c. 1540–50.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.