fake news vs falsehood

fake news

noun
  • News stories with false or misleading information, deliberately created to disinform. 

  • Satirical news stories, intended to amuse. 

falsehood

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

  • The property of being false. 

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