constate vs purport

constate

verb
  • To relay information in a statement and say whether it is true or false. 

  • To ascertain; to verify; to establish; to prove. 

purport

verb
  • To convey, imply, or profess (often falsely or inaccurately). 

  • To intend. 

noun
  • import, intention or purpose 

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