procreant vs yielding

procreant

adj
  • Of or pertaining to procreation; procreative. 

  • That procreates. 

noun
  • One who, or that which, procreates. 

yielding

adj
  • Docile, or inclined to give way to pressure. 

noun
  • A concession. 

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