approve vs send off

approve

verb
  • To officially sanction; to ratify; to confirm; to set as satisfactory. 

  • To make profit of; to convert to one's own profit — said especially of waste or common land appropriated by the lord of the manor. 

  • To consider worthy (to); to be pleased (with); to accept. 

  • To regard as good; to commend; to be pleased with; to think well of. 

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 approve and send off occurred in a corpus of books? (source: Google Ngram Viewer )