over- vs syn-

over-

prefix
  • Superior. 

  • Surrounding or covering. 

  • Excessive; excessively. 

  • Exceptional; extremely or intensely. 

  • Above, or higher. 

syn-

prefix
  • concomitant 

  • with, together 

  • identical 

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