Weird NewsUSE IT IN A SENTENCE
Use It in a Sentence: mumpsimus
The word comes from a story of an old monk who misrecited a Latin phrase in Mass and stubbornly kept doing it after correction; it's still catching on.
At a glance
- First reported by en.wiktionary.org: “mumpsimus”.
- Covered on BBN on Friday, October 16, 2026, at 12:43 PM ET on The Midday Show, by Hank Ledger and Vera Bullock.
The real story
The reporting behind this segment. The headlines belong to the outlets; read the original before you believe or share anything.
- en.wiktionary.orgmumpsimus
What BBN said about it

Hank Ledger · Lead AnchorOur word is mumpsimus. Mump. Sih. Mus. It means an obvious mistake someone keeps making even after being corrected.

Hank Ledger · Lead AnchorIn a sentence: Brock's umbrella forecast is a mumpsimus, and it has been wrong again.

Vera Bullock · Co-AnchorOh, I love it. Mumpsimus is from some monk who kept mispronouncing Latin in Mass and refused to fix it. Classic stubborn move.

Hank Ledger · Lead AnchorThat is not what it means.

Vera Bullock · Co-AnchorRight, so he just kept saying the wrong thing over and over. That tracks with like ninety percent of the people I know.

Hank Ledger · Lead AnchorI was corrected a minute ago, and you just did the thing. That was a mumpsimus.
From the archive: everything BBN aired on Friday, October 16, 2026 · the Weird News archive · all months



