derivational vs vicarious

derivational

adj
  • Of or pertaining to derivation; relating to that which is derived. 

vicarious

adj
  • Experienced or gained by taking in another person’s experience, rather than through first-hand experience, such as through watching or reading. 

  • On behalf of others. 

  • Delegated. 

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