reject vs take on

reject

verb
  • To block a shot, especially if it sends the ball off the court. 

  • To refuse a romantic advance. 

  • To refuse to accept. 

noun
  • A rejected takeoff. 

  • A rejected defective product in a production line. 

  • Something that is rejected. 

  • An unpopular person. 

take on

verb
  • To (attempt to) dribble round (an opposition player). 

  • To assume or take responsibility for. 

  • To catch on, do well; to become popular. 

  • To obtain the services of (a person) in exchange for remuneration; to give someone a job. 

  • To begin to have or exhibit. 

  • To attempt to fight, compete with, or engage with. 

  • To acquire, bring in, or introduce. 

  • To grieve or be concerned (about something or someone). 

How often have the words reject and take on occurred in a corpus of books? (source: Google Ngram Viewer )