fraternize vs make the rounds

fraternize

verb
  • To associate as friends with an enemy, in violation of duty. 

  • To associate with others in a brotherly or friendly manner. 

  • To have an intimate or sexual relationship with a forbidden member of the opposite sex; as, in some cases, football players with cheerleaders. 

make the rounds

verb
  • To go from one place to another for a particular reason. 

  • To circulate from one place to another. 

How often have the words fraternize and make the rounds occurred in a corpus of books? (source: Google Ngram Viewer )