ex- vs mal-

ex-

prefix
  • Lacking. 

  • former, but still living (almost always used with a hyphen) 

  • out of 

  • outside 

mal-

prefix
  • not 

  • incorrect 

  • incomplete, unfinished 

  • unintentional, mistaken, accidental 

  • unpleasant 

  • poorly, deficiently 

  • unhealthy, harmful 

  • evil 

How often have the words ex- and mal- occurred in a corpus of books? (source: Google Ngram Viewer )