Dravanian Language/Naming Conventions?

[Vartio]

So far, all the norse-named dragons we've bumped into where all very strong; either sub bosses of dungeons or in FATEs. The ones with the Draconic names seem to be on the weaker side

I disagree. Isilgild (or whatever it's name was) from Stone Vigil's infinitely weaker than the weaker mobs in early Dragavian Forelands - including the 3 newborn whelps you beat up during one sidequest.