captaincy vs governorship

captaincy

noun
  • The jurisdiction of a captain. 

  • The rank or status of a captain. 

  • An administrative division of the former Spanish and Portuguese colonial empires. 

governorship

noun
  • The office, or the term of a governor. 

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