Mumpsimus is a rare word that refers to a stubborn adherence to an incorrect way of doing or saying something. Its unusual spelling can be explained phonetically as /ˈmʌmp.sɪ.məs/ – with stress on the first syllable – which breaks down into three syllables: "mump" (rhyming with "hump"), "si" (rhyming with "eye"), and "mus" (rhyming with "bus"). This peculiar word dates back to the 16th century and has found its way into occasional usage, often with a mocking tone.
Mumpsimus is a noun that refers to a traditional custom, belief, or practice that is adhered to stubbornly, regardless of evidence to the contrary or when it is clearly outdated or incorrect.
This term is often used to describe a person who insists on clinging to obsolete or erroneous ideas despite being presented with new information or facts that contradict their beliefs. It implies an inflexible mindset that refuses to be influenced by reason or logic.
The origin of "mumpsimus" dates back to the 16th century, and it is derived from a story about an illiterate priest who mistakenly recited the word "mumpsimus" instead of "sumpsimus" during the Latin Mass. Even after being corrected, the priest continued to use "mumpsimus" due to his ignorance. This tale serves as a metaphor for people who hold on to false beliefs or outdated practices.
Today, "mumpsimus" can be used metaphorically to describe individuals or institutions that resist change or reject advancements in knowledge. It reflects an unwillingness to adapt to new ideas or information, often resulting in the perpetuation of false or ineffective practices.
The word "mumpsimus" has an interesting etymology. It originated in the late 16th century and is derived from a story involving a Catholic priest.
According to the tale, there was a priest who had been saying a particular phrase incorrectly during mass for many years. Despite being corrected by others, the priest stubbornly continued to use the incorrect phrase. When he was finally informed of his error, he allegedly replied, "I will not change my old mumpsimus for your new sumpsimus", meaning that he preferred to stick with his old way of saying things (mumpsimus) rather than accept the corrected version (sumpsimus).
As a result, the word "mumpsimus" came to represent a person who clings stubbornly to their own outdated beliefs or practices, even when proven wrong. It is often used to criticize someone who refuses to change their stance despite overwhelming evidence or reason.