pusillanimity vs stickability

pusillanimity

noun
  • The quality or state of being pusillanimous; the vice of being timid and cowardly, and thus not living up to one's full potential; pusillanimousness. 

stickability

noun
  • The motivation and ability to keep at something in the face of obstacles;determination and persistence; 

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