diadem vs privilege

diadem

noun
  • Regal power; sovereignty; empire—considered as symbolized by the crown. 

  • A crown. 

  • An ornamental headband worn as a badge of royalty. 

  • An arch rising from the rim of a crown (rarely also of a coronet), and uniting with others over its centre. 

verb
  • To adorn with a diadem; to crown. 

privilege

noun
  • The fact of being privileged; the status or existence of (now especially social or economic) benefit or advantage within a given society. 

  • A right or immunity enjoyed by a legislative body or its members. 

  • An exemption from certain laws granted by the Pope. 

  • An especially rare or fortunate opportunity; the good fortune (to do something). 

  • A common law doctrine that protects certain communications from being used as evidence in court. 

  • An ability to perform an action on the system that can be selectively granted or denied to users. 

  • A particular benefit, advantage, or favor; a right or immunity enjoyed by some but not others; a prerogative, preferential treatment. 

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