beget vs procreate

beget

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

  • To bring forth. 

  • To cause; to produce. 

  • To happen to; befall. 

procreate

verb
  • To beget or conceive (offspring). 

  • To originate, create or produce something. 

  • To reproduce. 

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