My brother's just had a baby. She didn't have a name so they started calling her 'mini' as she is small. Which has turned into Minnie. Which they are now thinking of as a name, but it sounds a bit too nicknamey on its own. What could it be short for? Minerva?
I can think of Minnie Mouse and Minnie Driver who have this name but not sure if it is a shortened form of anything or name in its own right.