Without knowing anything about them...

My first instinct would be to separate them into two tribes like every other race in the game - cats and dogs (cheetah/leopard/lion and wolf). I would posit the feline variety have African names due to big cats' cultural association with the continent, while the canines have Native American names due to popular culture often associating them with Native Americans. (Tibetan would make sense given their inspiration comes from X's Ronso, but we already know the Hrothgar on the first are called Ronso and so likely have that bit down pat.)

Unfortunately, their racial name having Norse etymology throws a wrench into all of this... so maybe none of the above. Maybe something wholly original like the Lalafell and Roegadyn. Who's to say?