> Sorry, this cannot be done by just dropping the "Describe" part.  The
> reason is that on some systems (notably, the non-toolkit X build),
> only the last submenu is displayed.  That is, if you click Help, then
> select Describe, the initial Help menu disappears, and only the
> Describe submenu stays on the screen.  So, if you remove the
> "Describe" part, what one sees is incomprehensible.

Actually on the non-toolkit X build the parent's menu name is
displayed in the header of the submenu: