agree vs discourse

agree

verb
  • To be in harmony about an opinion, statement, or action; to have a consistent idea between two or more people. 

  • To make a stipulation by way of settling differences or determining a price; to exchange promises; to come to terms or to a common resolve; to promise. 

  • To consent to a contract or to an element of a contract. 

  • To suit or be adapted in its effects; to do well. 

  • To give assent; to accede 

  • To correspond to (another word) in a grammatical category, such as gender, number, case, or person. 

  • To yield assent to; to approve. 

  • To resemble; to coincide; to correspond. 

discourse

verb
  • To engage in discussion or conversation; to converse. 

  • To exercise reason; to employ the mind in judging and inferring; to reason. 

  • To write or speak formally and at length. 

noun
  • Expression in words, either speech or writing. 

  • A formal lengthy exposition of some subject, either spoken or written. 

  • An institutionalized way of thinking, a social boundary defining what can be said about a specific topic (after Michel Foucault). 

  • Any rational expression, reason. 

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