It makes me snicker. I can sort of see it as a nn, at least the kid would have something to fall back on.
I tried to get people to pronounce my name (
Caitlin) in the Scottish Gaelic way (kash-LEEN) one summer, and this guy INSISTED on nicknaming me
Cash. I hated it. I didn't get teased, but I still hated it.
Bill is far more well-known than
Cash.
Cash is just a new "cool" trendy name as far as I'm concerned.