Primordial Language

The word "Nag" means "To Die".
The word "Nagash" means "Death".
The word "Ash" is used to transform verbs into nouns, i.e. "Nag" to "Nagash" transforms from "To Die" to "Death".
The word "Az" means "Place/Location/Structure".
The word "Azar" technically means "Place/Location/Structure", but is always used in conjunction with another noun, rather than on its own, i.e. "Nagash" to "Nagashazar" transforms "Death" to "Pleac of Death".