mumpsimus

/ˈmʌmpsɪməs/

//ˈmʌmpsɪməs// noun

"mumpsimus" is a 9-letter English headword indexed on PlainSpell.

The verdict

“mumpsimus” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A person who obstinately adheres to old ways in spite of clear evidence that they are wrong; an ignorant and bigoted opponent of reform.

Corpus desk

Index EN-mumpsimus · mumpsimus · English

mumpsimus · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "M" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for mumpsimus
PropertyValue
Headwordmumpsimus
LanguageEnglish
Part of speechNoun
IPA/ˈmʌmpsɪməs/
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “mumpsimus” in English

mumpsimussits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

mumpsimus is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈmʌmpsɪməs/. Rarity is why readers land here mid-draft. 2 senses are on record.

We couldn't generate a plausible misspelling set for mumpsimus, since its letter sequence doesn't invite the usual edit-distance slips. This headword has no recorded confusable partner, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: Malapropism of Latin sumpsimus, form of sūmō (“I 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 … The correct English form is mumpsimus, spelled M-U-M-P-S-I-M-U-S.

Definition

  1. 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.
  2. 2
    An obvious error that is obstinately repeated despite correction.

Etymology

Malapropism of Latin sumpsimus, form of sūmō (“I 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.

Antonyms

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "mumpsimus"?
"mumpsimus" is spelled M-U-M-P-S-I-M-U-S. The IPA pronunciation is /ˈmʌmpsɪməs/.
What does "mumpsimus" mean?
As a noun, "mumpsimus" means: A person who obstinately adheres to old ways in spite of clear evidence that they are wrong; an ignorant and bigoted opponent of reform.
How do you pronounce "mumpsimus"?
The IPA (International Phonetic Alphabet) transcription for "mumpsimus" is /ˈmʌmpsɪməs/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "mumpsimus"?
Malapropism of Latin sumpsimus, form of sūmō (“I 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 ... See the full etymology section above for more details.
Is PlainSpell free to use?
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Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list