despatch vs send off

despatch

send off

noun
  • farewell party 

  • funeral or memorial service 

verb
  • 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 send; to dispatch. 

  • To emit; to emanate. 

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