sportyybabex
A myth is a story. Sometimes. Or it can be a theory that has yet to be tested for real. Or it has been tested but people in this day and age have never tested it. Some people believe myths. Some people don't care for them. Myths are sometimes real, sometimes not. Most likely they aren't real. But thats why we have shows like Mythbusters to help us test myths out.
common means something is the same. right ? I think thats pretty much what common is. People can have things in common with each other, meaning they have certain characteristics that are the same. Names can be common, meaning they are used very often making them the same or 'common' to others.