constitute vs set on foot

constitute

verb
  • To set up; to establish; to enact. 

  • To make up; to compose; to form. 

  • To appoint, depute, or elect to an office; to make and empower. 

set on foot

verb
  • To originate; to put into action. 

How often have the words constitute and set on foot occurred in a corpus of books? (source: Google Ngram Viewer )