endurability vs endurance

endurability

noun
  • The state or quality of being endurable. 

endurance

noun
  • The measure of a person's stamina or persistence. 

  • The length of time that a ship's rations will supply 

  • Ability to endure hardship. 

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