foreguess vs grounds

foreguess

noun
  • A conjecture; an assumption. 

verb
  • To forecast. 

  • To guess beforehand. 

  • To conjecture; assume. 

  • To anticipate; expect. 

grounds

noun
  • Basis or justification for something. 

  • The sediment at the bottom of a liquid, or from which a liquid has been filtered. 

  • The collective land areas that compose a larger area. 

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