Come to think of it, what does Neill mean as well?
JAY - incredibly boringly this means 'bird in the crow family'. Nothing heroic there at all. We are named after a bird - a pretty one I'll grant you, but a bird nonetheless. But what if your given name is Jason or James....
JASON - means healer. That's much more exciting than 'bird in the crow family'.
JAMES - means supplanter. Now we're talking. Supplanter conjures up images of medieval sieges and invading hordes.
NEILL / NEIL - means champion. Now there's a name to be proud of...it's Irish I guess, or Celtic or something.