kingship vs taj

kingship

noun
  • A monarchy. 

  • The territory or dominion of a king; a kingdom. 

  • The dignity, rank or office of a king; the state of being a king. 

taj

noun
  • A crown worn by Indian princes as a sign of high rank. 

  • A tall brimless hat, usually conical or curved on top, worn in Muslim countries as a sign of distinction and prestige. 

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