Nadzieja

Nadzieja is one of the most beautiful names in my opinion. It's unique, strong and sophisticated at the same time. Even though it's also a common noun and despite the saying "Nadzieja matką głupców" ("hope is a mother of fools"), I simply love it. It also has a cute pet form Nadzia, although I don't think a child would like to be called that by friends. ;) Nadia (which is lovely, too) would probably be more acceptable.