invite vs motivate

invite

verb
  • To encourage. 

  • To ask for the presence or participation of someone or something. 

  • To allure; to draw to; to tempt to come; to induce by pleasure or hope; to attract. 

  • To request formally. 

noun
  • An invitation. 

motivate

verb
  • To provide someone with an incentive to do something; to encourage. 

  • To animate; to propel; to cause to take action 

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