- Edited
Ithilien honestly yes, I see it as turtle. and in general, that's a bad name too because it makes me think of the phrase "无家可归" which literally means hobo. idk if your character is a homeless man and that's intentional but I would advise against using that name.
as for alternatives... how about 望归/Wanggui? Wang = looking to and Gui = return to, so together, the name would mean wishing for a place to return to but not having one, which is similar as Wugui but also slightly different.
though ngl I don't like the word 'gui' in a name (I just don't like the sound of it in names), so how about these names:
孤冥/Guming = alone in the darkness
离影/Liying = separate & in the shadows
临渊/Linyuan = facing the abyss (of one's own mind, perhaps?)
all of these are pretty depressing, but then again, Wugui also sounds depressing, so yep.
In general, no one really wishes to give their child a name that means that they'll have nowhere to return to so that's why there's barely any proper names that work like that.