mal- vs syn-

mal-

prefix
  • incorrect 

  • incomplete, unfinished 

  • unintentional, mistaken, accidental 

  • unpleasant 

  • poorly, deficiently 

  • not 

  • unhealthy, harmful 

  • evil 

syn-

prefix
  • concomitant 

  • with, together 

  • identical 

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