Is the name "Addamasartus" a daedric name? Or is it Dunmeris? Or something else? It's a very long name, like how daedric ruins are named, yet the smuggler's cave isn't daedric at all.

Don't dunmer name both daedric shrines and caves?

The "US" suffix is common for both shrines and caves, is that helps.

Actually, both the Daedric shrines AND the cave systems in Morrowind are named using the Dunmeri language.

edit: ninja-ed by mike. so just treat my post as confirmation of his.

Gotta love the vibe these names have... when I stumbled upon Adadashashanamu or however its called .. love these absurdly long names

I know!

And I believe you're referring to Addadshashanammu.

Thanks, guys. So theoretically, had Bethesda designed Addamasartus as a daedric shrine instead of a smugglers cave but kept the same name, it would still fit appropriately for a daedric shrine?

I'm asking because I gave the name "Addammassar" to my character, Vedaa Addammassar, and was wondering if it would have Daedric origins or connections since she is a devout worshipper of the Daedric Princes. This information is for my biography of my character.

Yes, it certainly would. On average, the names of the Daedric shrines are longer than caves, but there might just be more descriptors (technically morphemes) needed since Old Dunmeris / Chimeris seems to heavily utilize affixation in the construction of place names.

I had to google morpheme, which is the smallest grammatical unit in a language, but your post still confused me. Is there not really much of a difference between Old Dunmeris and the names of Daedric shrines? Or are daedric shrines named using Old Dunmeris? What is old Dunmeris compared to modern Dunmeris that is currently spoken?

Note that I am speaking from my own research. Old Dunmeris is what you see in most ancient place names such as caves and Daedric shrines. The Ashlander dialect diverged from Old Dunmeris / Chimeris, but is still the closest in form - they pride themselves in holding to the old customs, this is true for language as well. While Modern Dunmeris is a heavily abbreviated version of the old, to the point of becoming an entirely different language. More Aldmeri influence can also be seen in Modern Dunmeris in names such as Balmora than in Old Dunmeris. It is also known as the Great House dialect and is what you see in the names of most House Dunmer and modern place names like Gnaar Mok.

I feel like this thread is heading more into the Lore section but I found http://www.uesp.net/wiki/Lore:Ehlnofex_Languages from UESP and perhaps Old Dunmeris would be considered Chimeris? Old Dunmeris being the names of caves and shrines like Addamasartus and Addadshashanammu... but were those names already established by the Dwemer when the fleeing Aldmer moved in to Resdayn with the dwarves and thus becoming Chimer? Or were those names established after the dwarves disappeared and the chimer became dunmer? It probably isn't known, huh? I still would like to read your thoughts.

Interestingly enough, my character is a proud Ashlander, but from the mainland (somewhere in Deshaan).

I found http://casualscrolls.wikia.com/wiki/Dunmeri_language on Dunmeris but I don't think it is very canon. It says Casual Scrolls so perhaps most of it was thought up by the fan?

As I mentioned in my post above, what I called "Old Dunmeris" for convenience' sake is definitely Chimeris - to answer your question. Chimeris absolutely has Daedric influences since their entire culture including the Clan/House system is based on Daedric principles. So I guess I was hasty when I said that the Daedric shrine names were "just" Chimeri. They are just Chimeri, which also makes them somewhat Daedric in origin.

The place names which we encounter on Vvardenfell are consistently named in the Chimeri language, they are definitely not Dwemeris. Only the Dwemer ruins and Vvardenfell itself use that language. The Dwemer likely would have used a whole different set of place names to describe areas of Vvardenfell.

That webpage is based on Majra's Dunmeri Translator document. I don't really like it because it doesn't seem to utilize the in-game Dunmer names whatsoever, but it's still a cool endeavor on the author's part.