thresh vs wiggle

thresh

verb
  • To violently toss the limbs about. 

  • To beat soundly, usually with some tool such as a stick or whip; to drub. 

  • To separate the grain from the straw or husks (chaff) by mechanical beating, with a flail or machinery. 

wiggle

verb
  • To move with irregular, back and forward or side to side motions; To shake or jiggle. 

noun
  • A rapid movement in alternating opposite directions, not necessarily regular. 

  • An alternating state or characteristic. 

  • See wiggles. 

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