embark vs enship

embark

verb
  • To cause to go on board a vessel or boat; to put on shipboard. 

  • To start, begin. 

  • To get on a boat or ship or (outside the USA) an aeroplane. 

  • To engage, enlist, or invest (as persons, money, etc.) in any affair. 

enship

verb
  • To put aboard a ship. 

  • To travel or send by ship. 

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