Standard Lemma guide

mumpsimus

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • General-American: /ˈmʌmpsɪməs/
  • General-American: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

A person who obstinately adheres to old ways in spite of clear evidence that they are wrong; an ignorant and bigoted opponent of reform.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

An obvious error that is obstinately repeated despite correction.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

a traditional notion that is obstinately held although it is unreasonable

Definition source: Princeton WordNet 3.0

Examples

  • he still holds to the old mumpsimus that a woman's place is in the kitchen

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: notion

History

Etymology

Malapropism of Latin sumpsimus, form of sūmō (“to take”), from a story of an old monk who misrecited the Eucharist with quod in ōre mumpsimus instead of quod in ōre sumpsimus “which we have taken into the mouth”, and stubbornly continued using the incorrect form even after being corrected. Attested 1530 in The Practice of Prelates by William Tyndale, variously attributed to Richard Pace (1517) or Desiderius Erasmus.