inter- vs syn-

inter-

prefix

  • mutual, together 

  • within 

  • intermediate 

  • between, amid, among 

  • reciprocal, to each other 

syn-

prefix

  • with, together 

  • identical 

  • concomitant 

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