imbrue vs procreate

imbrue

verb
  • To stain (in, with, blood, slaughter, etc.). 

procreate

verb
  • To reproduce. 

  • To originate, create or produce something. 

  • To beget or conceive (offspring). 

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