conveyance vs pilotage

conveyance

noun
  • A means of transporting, especially a vehicle. 

  • An instrument transferring title of an object from one person or group of persons to another. 

  • An act or instance of conveying. 

verb
  • To transfer (the title) of an object from one person or group of persons to another. 

pilotage

noun
  • The use of landmarks to guide a vessel or aircraft to its destination. 

  • The occupation of a pilot. 

  • The fee paid to a pilot. 

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