- "[P]erhaps from Late Latin mussirionem"
- "might as well be borrowed from French."
- "of uncertain origin."
- "a word of pre-Latin origin, used in the North of France;"
- "usually is held to be a derivative of French mousse"moss"
- "properly 'applied to variety which grows in moss'"
- "nothing in common" with moss
So, let's say instead that one day in the 11th century (this is a very old word!!) Gervase (I have always wanted to write about a Gervase) is walking in the woods in Burgundy (why not?) and trips on a branch and falls on his face into a (as-yet-unnamed) mushroom patch at which time he curses, "MAH SRUME!" because he has broken his nose and the ancient Burgundian word for nose is NU (not really), but he can't say "my nu" correctly because his nose is broken. His friend who is looking on unhelpfully, makes note of the fact that the little umbrella-shaped (which he is familiar with since umbrellas were invented in 21AD) items growing on the forest floor are mushrooms.
Pass it on. (If enough people say it's true, it becomes true. I learned that from Fox News.)