exhortation vs mandate

exhortation

noun
  • The act or practice of exhorting; the act of inciting to laudable deeds; incitement to that which is good or commendable. 

  • Language intended to incite and encourage 

mandate

noun
  • An official or authoritative command; an order or injunction; a commission; a judicial precept; an authorization. 

  • An order by the League of Nations to a member nation to establish a government responsible for a conquered territory, as the colonies of Germany after World War I. 

  • A period during which a government is in power. 

  • Such a territory. 

  • The order or authority to do something, as granted to a politician by the electorate. 

verb
  • To authorize. 

  • To make mandatory. 

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