falsehood vs fiction

falsehood

noun
  • A false statement, especially an intentional one; a lie. 

  • The property of being false. 

fiction

noun
  • A verbal or written account that is not based on actual events (often intended to mislead). 

  • Literary type using invented or imaginative writing, instead of real facts, usually written as prose. 

  • A legal fiction. 

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