I have been re-reading the LotR and, it being a masterpiece and a huge work at the same time, I felt the need to ask for clarification about a rather specific issue. I got a good answer and accepted it.
Then, unable to drop the book after having completed it, I read the Appendices with greater attention: and I found out basically the answer to my question (see the update at the end of it). I don't know if this makes my question "general reference" and so: should the question be in some sense withdrawn? What should I do?
I decided to add an edit to the question because adding an answer seemed unfair towards the original (Already accepted) answerer.
UPDATE Following @keen's suggestion I have removed my update from my question and edited accordingly the answer, hoping to have been respectful of the original answerer. I also added a link to this meta discussion.