industriousness vs leisure

industriousness

noun
  • The quality of being industrious; diligence. 

leisure

noun
  • Free time, time free from work or duties. 

  • Time at one's command, free from engagement; convenient opportunity; hence, convenience; ease. 

  • Freedom provided by the cessation of activities. 

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