blow hot and cold vs swither

blow hot and cold

verb
  • To behave inconsistently; to vacillate or to waver, as between extremes of opinion or emotion. 

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 blow hot and cold and swither occurred in a corpus of books? (source: Google Ngram Viewer )