explanation vs foreguess

explanation

noun
  • A resolution of disputed points pursuant to discussion; a mutual clarification of disputed points; reconciliation. 

  • Something that explains, makes understandable. 

  • The act or process of explaining. 

foreguess

noun
  • A conjecture; an assumption. 

verb
  • To forecast. 

  • To guess beforehand. 

  • To conjecture; assume. 

  • To anticipate; expect. 

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