Everything about "pox leber" as a minced oath, and an earlier source.

[JoJo_Jost]

poxgrmt is: "poxgrint" Scabs, crusts, encrusted skin – typically smallpox scabs (i.e., the crusts/scabs associated with smallpox). you can see the dot

I had pox = smallpox  “Poxleber” as a swear word/curse word in connection with the reading “Lutzifer” as the last word of the marginalia. But then I rejected it again because I wasn't sure whether this rather English term had already arrived in Germany around 1430. So very interesting.