What's the noun for mumpery? Here's the word you're looking for.
mumps
(pathology) A contagious disease caused by the Mumps virus of the genus Rubulavirus, mostly occurring in childhood, which causes swelling of glands in the face and neck.
“My cousin was diagnosed with mumps, and his swollen salivary glands made it difficult for him to eat or speak.”
“The school had to send a notification to parents about a suspected case of mumps, urging them to monitor their children for symptoms and seek medical attention if necessary.”
“Jim Mumper, a PartnerMD physician and the company's chief medical officer.”
“Among the items to come under the hammer was an original canvas from Mod Art, a signed copy of The Mumper by Mark Baxter and a Small Faces book signed by Paolo Hewitt.”