send off vs vanish

send off

verb
  • To emit; to emanate. 

  • 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. 

noun
  • farewell party 

  • funeral or memorial service 

vanish

verb
  • to disappear; to kidnap 

  • To become equal to zero. 

  • To become invisible or to move out of view unnoticed. 

noun
  • The brief terminal part of a vowel or vocal element, differing more or less in quality from the main part. 

  • A magic trick in which something seems to disappear. 

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