contentedness vs foreboding

contentedness

noun
  • The state of being contented 

foreboding

adj
  • Of ominous significance; serving as an ill omen; foretelling of harm or difficulty. 

noun
  • A sense of evil to come. 

  • An evil omen. 

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