embody vs substantiate

embody

verb
  • To represent in a physical or concrete form; to incarnate or personify. 

  • To unite in a body or mass. 

  • To represent in some other form, such as a code of laws. 

  • To comprise or include as part of a cohesive whole; to be made up of. 

  • The US Constitution aimed to embody the ideals of diverse groups of people, from Puritans to Deists. 

substantiate

verb
  • To give material form or substance to something; to embody; to record in documents 

  • To verify something by supplying evidence; to authenticate or corroborate 

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