boredom vs sameness

boredom

noun
  • An instance or period of being bored; A bored state. 

  • The state of being bored. 

sameness

noun
  • A tiring lack of variety; monotony. 

  • The quality of being the same; identity. 

  • The state of being equivalent; equality. 

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