The Aspell Maori dictionary is based on the MySpell One:

    OpenOffice.org Maori Spell-Checking Dictionary
    Copyright (C) 2003  Tristan Burtenshaw
    Word list courtesy of Dr. Mark Laws

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

Original MySpell README file and affix file can be found in the doc/
directory.