I can see a clear distinction between Reformed Egyptian and Book of Mormon Languages, though I agree the term is a bit ambiguous, and might be expected to mean the languages the Book of Mormon was written in.  Is there possibly a better title for the article?  How about Linguistics and the Book of Mormon -D?  Sorry.  To tell the truth, Linguistics and the Book of Mormon does probably encompass that subject, and I am not sure how to break it out cleanly.  Hmm.  Could you start for now with a section of Linguistics?