[Shelob]

It's not actually Tolkien...in fact it's only Tolkien hidden in normal names...but you could name her Anna-Marie. Double names like that are fairly common, and both names are perfectly fine on their own. This particular combination though has 'namarie' in it (Anna-Marie). Farewell may not be the best thing for a name to mean, but it is pretty sounding...and gives you an excuse to sing her that song, as well as not being obviously Tolkien related. If you don't like it that's fine too, I just like things that are hidden in plain view...they seem much more special than things advertised to the world.

Either Way Congratulations.

*edit* Apologies...my friend just informed me that 'namarie' is not said 'nah-mah-ree', as she says it (thank you very much friend) but 'nah-mah-ree-ay'. My apologies again for my ignorance of the pronunciation differences, though if you still want just the word the spelling remains the same (and this is embarassingly backwards for me...ususally I'm good with pronunciation but unable to even spell my name...). Ah-Well...Congratulations again.