Cade
Taken from the English surname. There are several different origins. In Old English, it was a nickname for something lumpy or round. It also could be derived from Middle English word "cade," meaning "a young animal abandoned by its mother," or "barrel". It is uncertain whether or not this definition would imply an occupation involving barrels, or if it was a nickname towards someone with a barrel-like physique.
More info:
Results for "Cade" on Google