Sitzfleisch vs resoluteness

Sitzfleisch

noun
  • A person's bottom; the posterior. 

  • The ability to endure or carry on with an activity. 

resoluteness

noun
  • The state or characteristic of being resolute; determination or resolution. 

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