conclusion vs surmise

conclusion

noun
  • In an argument or syllogism, the proposition that follows as a necessary consequence of the premises. 

  • The end or close of a pleading, for example, the formal ending of an indictment, "against the peace", etc. 

  • The outcome or result of a process or act. 

  • A decision reached after careful thought. 

  • An estoppel or bar by which a person is held to a particular position. 

  • The end, finish, close or last part of something. 

surmise

noun
  • Reflection; thought; posit. 

  • Thought, imagination, or conjecture, which may be based upon feeble or scanty evidence; suspicion; guess. 

verb
  • To imagine or suspect; to conjecture; to posit with contestable premises. 

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