This is in fact derived from the Greek name Persephone. Proserpina was a Roman goddess whose worship began when the Romans started to take on aspects of Greek culture.
-- Anonymous User 5/2/2006
Prosperina reminds me of persperation.
-- Anonymous User 11/30/2006
I love the way this sounds, but I can't really picture it on a modern person. Oh well, it's still one of my favorite names. I actually think it's prettier than Persephone, although I like that too.