I'm trying to come up with a last name for my Silvan Lore-master from Mirkwood. I would like it to mean something along the lines of "evening doe" or "deer under the stars/moon".

I've tried looking up various Sindarin dictionaries online, but I don't know how to combine words/phrases. I guess "aras" is supposed to mean deer. I have her last name as "Vanaras" currently, but I honestly don't know where I got the "van" from.

Any help please?