The Aspell Hungarian dictionary is based on the MySpell One:

  This dictionary is based on the Hungarian wordlist and affixes created
  by László Németh, september 2003 V0.99.4, and is covered by their original 
  Gnu GPL license as published by the FSF, published at 
  http://www.yahoogroups.com/group/magyarispell/files.

The wordlist was cleaned up with doc/clean.pl