adduce vs surmise

adduce

verb
  • To bring forward or offer, as an argument, passage, or consideration which bears on a statement or case; to cite; to allege. 

surmise

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

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

  • Reflection; thought; posit. 

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