Nwaij
Dalayan Pious Diety
Don't think they have any other names then "The Old World", "The North", "The New World" (or "Faydark", if you prefere that one), "Erudin Islands" and "Ikisith". There are also "The Planes", but they are, by definition, not a part of Dalaya. If you want to know more about those regions, see here.