innovate vs repurpose

innovate

verb
  • To introduce something new to a particular environment; to do something new. 

  • To introduce (something) as new. 

repurpose

verb
  • To alter to make more suited for a different purpose. 

  • To reuse for a different purpose, on a long-term basis, without alteration. 

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