Maybe '-az' came from Karaz?
Thus, it's not that grammar bends around Karaz and -az. It's that the language use came from the importance mountains played in Dwarf psychology and mythology and linguistics in the first place. Perhaps Dwarfs started referring to some important things with '-az' after mountain. ((So I guess the grammar does still bend around it. But it's because they started using mountains as a reference in their word usage. The grammar and culture grew out of that.))
Because mountains were their go-to example of the most real and solid thing, a physical thing that is also an exemplar or important concept, they began to export the suffix -az to other things that they considered very important or physical or solid?
Thus, it's not that grammar bends around Karaz and -az. It's that the language use came from the importance mountains played in Dwarf psychology and mythology and linguistics in the first place. Perhaps Dwarfs started referring to some important things with '-az' after mountain. ((So I guess the grammar does still bend around it. But it's because they started using mountains as a reference in their word usage. The grammar and culture grew out of that.))
Because mountains were their go-to example of the most real and solid thing, a physical thing that is also an exemplar or important concept, they began to export the suffix -az to other things that they considered very important or physical or solid?