deboard vs get away

deboard

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

get away

verb
  • To start moving; to depart. 

  • To take a break from one's present circumstances; to journey (to), especially on holiday. 

  • To slip from one's control. 

  • To move away (from). 

  • To avoid capture; to escape; to flee (from). 

intj
  • Expressing disbelief. 

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