be on one's way vs push off

be on one's way

push off

verb
  • To go away; to get lost. 

  • To delay, postpone, put off, push back. 

  • to commit a foul by pushing against an opponent to both accelerate more quickly and push the opponent in the opposite direction. 

How often have the words be on one's way and push off occurred in a corpus of books? (source: Google Ngram Viewer )