dependant vs passenger

dependant

noun
  • A person who depends on another for support, particularly financial support (= US dependent). 

passenger

noun
  • One who rides or travels in a vehicle, but who does not operate it and is not a member of the crew. 

  • A young hunting bird that can fly and is taken while it is still in its first year. 

  • A moth, Dysgonia algira 

  • Somebody in a team who does not do their fair share of the work. 

  • Any of the individual warheads of a MIRV missile. 

verb
  • To ride as a passenger in a vehicle. 

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