curious vs familiar

curious

adj
  • Leading one to ask questions about; somewhat odd, out of the ordinary, or unusual. 

  • Containing or pertaining to trivalent curium. 

  • Tending to ask questions, or to want to explore or investigate; inquisitive; (with a negative connotation) nosy, prying. 

  • Caused by curiosity. 

familiar

adj
  • Known to one, or generally known; commonplace. 

  • Of or pertaining to a family; familial. 

  • Intimate or friendly. 

  • Acquainted. 

noun
  • An attendant spirit, often in animal or demon form. 

  • The officer of the Inquisition who arrested suspected people. 

  • A member of a pope's or bishop's household. 

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