diadem vs influence

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. 

influence

noun
  • The power to affect, control or manipulate something or someone; the ability to change the development of fluctuating things such as conduct, thoughts or decisions. 

  • A person or thing exerting such power or action. 

  • Electrostatic induction. 

  • An element believed to determine someone's character or individual tendencies, caused by the position of the stars and planets at the time of one's birth. 

  • An action exerted by a person or thing with such power on another to cause change. 

verb
  • To exert, make use of one's influence. 

  • To have an effect on by using gentle or subtle action; to exert an influence upon; to modify, bias, or sway; to persuade or induce. 

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