endeavor vs enterprise

endeavor

verb
  • To attempt through application of effort (to do something); to try strenuously. 

  • To work with purpose. 

noun
  • A sincere attempt; a determined or assiduous effort towards a specific goal; assiduous or persistent activity. 

enterprise

verb
  • To undertake; to begin and attempt to perform; to venture upon. 

  • To treat with hospitality; to entertain. 

  • To undertake an enterprise, or something hazardous or difficult. 

noun
  • Active participation in projects. 

  • A willingness to undertake new or risky projects; energy and initiative. 

  • An undertaking, venture, or project, especially a daring and courageous one. 

  • A company, business, organization, or other purposeful endeavor. 

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