brainchild vs foreguess

brainchild

verb
  • To think up; to come up with. 

noun
  • A creation, original idea, or innovation, usually used to indicate the originators 

foreguess

verb
  • To guess beforehand. 

  • To forecast. 

  • To conjecture; assume. 

  • To anticipate; expect. 

noun
  • A conjecture; an assumption. 

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