consent vs send off

consent

verb
  • To express willingness, to give permission. 

  • To cause to sign a consent form. 

  • To agree in opinion or sentiment; to be of the same mind; to accord; to concur. 

noun
  • Voluntary agreement or permission. 

send off

verb
  • To send; to dispatch. 

  • To show someone a red card, and dismiss them from the playing area. 

  • To provide a celebration for someone who is leaving; give a sendoff. 

  • To emit; to emanate. 

noun
  • farewell party 

  • funeral or memorial service 

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