deboard vs go away

deboard

verb
  • To exit a form of transportation such as a boat, ship, airplane, trolley, streetcar or spaceship. 

go away

verb
  • To depart or leave a place. 

  • To travel somewhere, especially on holiday or vacation. 

  • To vanish or disappear. 

intj
  • A command encouraging someone to leave. 

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