Basically, what the title says - is there any interpretation for the meaning of the name Edrahil? I've found an attempt here, but can't quite make hand or foot of the etymology they present.
Being a good writer is 3% talent, 97% not being distracted by the Internet. (Anon.)
I'm sorry that I can't be of any help. My grasp of either Sindarin and Quenya is sketchy at best, so all I can say that the attempt you link to sounds plausible, but nothing more.
