pluck vs retreat

pluck

noun
  • An instance of plucking or pulling sharply. 

  • Guts, nerve, fortitude or persistence. 

  • The lungs, heart with trachea and often oesophagus removed from slaughtered animals. 

  • Cheap wine. 

verb
  • To take or remove (someone) quickly from a particular place or situation. 

  • To pull something sharply; to pull something out 

  • To pull or twitch sharply. 

  • To remove feathers from a bird. 

  • To play a string instrument pizzicato. 

  • To gently play a single string, e.g. on a guitar, violin etc. 

  • Of a glacier: to transport individual pieces of bedrock by means of gradual erosion through freezing and thawing. 

retreat

noun
  • The act of pulling back or withdrawing, as from something dangerous, or unpleasant. 

  • A peaceful, quiet place affording privacy or security. 

  • The act of reversing direction and receding from a forward position. 

  • A bugle call or drumbeat signaling the lowering of the flag at sunset, as on a military base. 

  • A military ceremony to lower the flag. 

  • The move of a piece from a threatened position. 

  • A period of retirement, seclusion, or solitude. 

  • A period of meditation, prayer or study. 

  • A signal for a military withdrawal. 

  • Withdrawal by military force from a dangerous position or from enemy attack. 

verb
  • To slope back. 

  • To withdraw military forces 

  • To shrink back due to generally warmer temperatures. 

  • To withdraw from a position, go back. 

  • a retreating forehead 

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