diadem vs prestige

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. 

prestige

adj
  • Regarded as relatively prestigious; often, considered the standard language or language variety, or a part of such a variety. 

noun
  • The quality of how good the reputation of something or someone is, how favourably something or someone is regarded. 

verb
  • To start over at an earlier point in a video game with some type of bonus or reward. 

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