SahkrahfaasI really like the word rath for some reason. I don't know why, but I like the word. I even named a Morrowind character Rath. RIP Rath the Argonian, lost to cave rats and the horrible combat system... and the fact that I sort of rely on autosaves...
I think it's interesting that rath "river" and reyth "tree" are so similar, because rivers and tributaries would resemble a tree from a dragon's-eye view.