power of attorney vs prerogative

power of attorney

noun
  • The legal authorisation of one person to act as the agent of another. 

  • A legal document allowing one person to act as the agent of another. 

prerogative

noun
  • A hereditary or official right or privilege. 

  • A right, especially when due to one's position or role. 

  • A right, or power that is exclusive to a monarch etc, especially such a power to make a decision or judgement. 

  • A property, attribute or ability which gives one a superiority or advantage over others; an inherent advantage or privilege; a talent. 

adj
  • Characterized by lawless state actions, as in a prerogative state. 

  • Having a hereditary or official right or privilege. 

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