beget vs bring on

beget

verb
  • To cause; to produce. 

  • To bring forth. 

  • To father; to sire; to produce (a child). 

  • To happen to; befall. 

bring on

verb
  • To cause. 

  • To pose a challenge or threat; to attack; to compete aggressively. 

  • To make something appear, as on a stage or a place of competition. 

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