redevelop vs relaunch

redevelop

verb
  • To develop again or differently. 

  • To convert a neighbourhood by demolishing old buildings and building new ones, or by renovating existing ones. 

  • To intensify by a second process. 

relaunch

verb
  • To launch again. 

noun
  • The act or fact of launching again. 

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