What are the legitimate spellings of addie?

People call me Ade on line which my "ear" has always interpreted addie. I don't really like the spelling addie as it is common nor do I like the look of addy...I actually don't like the double d at all. so I am thinking either Adee or Ade but was wondering what is actually out there. The reason this interests me is it is a shortening of my middle name and am trying to gradually transition to being called that, which probably won't relate to the spelling much since I am out of school and all but just curious.