> Thanks.  However, I think I'd like to separate this line from the
> existing Mongolian line (which uses the Cyrillic script).  I thought
> about labeling it "Mongolian Traditional:, WDYT?  Alternatively, we
> could rename the existing line to "Mongolian Cyrillic", if the
> traditional Mongolian script is back in wide use nowadays.

(TBH, Traditional script are used rarely).
But using "Mongolian Traditional" and "Mongolian Cyrillic" labels sound
perfect to me. Should I make new file:
emacs/lisp/leim/quail/mongolian.el and put these 2 input methods?
or "Mongolian-cyrillic" still should belongs to other cyrillics
in emacs/lisp/leim/quail/cyrillic.el? WDYT?

> In any
> case, I will need to know how "Mongolian" is written in the Mongolian
> script, can you tell that as well?


Sure here: (Just in case, I also made it as attachment)
- Mongolia - Монгол - ᠮᠣᠩᠭᠣᠯ 
- Mongolian language - Монгол хэл -  ᠮᠣᠩᠭᠣᠯ ᠬᠡᠯᠡ
- Mongolian traditional scrips - Монгол бичиг - ᠮᠣᠩᠭᠣᠯ ᠪᠢᠴᠢᠭ᠋