surmise vs swither

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. 

swither

verb
  • To be indecisive or in a state of confusion; to dither. 

  • To move or swing about. 

noun
  • A state of indecision or confusion; a panicked state; a flap, fluster, or dither. 

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