poach vs retreat

poach

noun
  • The act of taking something unfairly, as in tennis doubles where one player returns a shot that their partner was better placed to return. 

  • The act of cooking in simmering liquid. 

verb
  • To take game or fish illegally. 

  • To take anything illegally or unfairly. 

  • To become soft or muddy by being trampled on. 

  • To cook something in simmering liquid. 

  • To be cooked in simmering liquid 

  • To entice (an employee or customer) to switch from a competing company to one's own. 

  • To intrude; to interfere; to get involved inappropriately, without welcome. 

  • To make soft or muddy by trampling. 

  • To trespass on another's property to take fish or game. 

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 poach and retreat occurred in a corpus of books? (source: Google Ngram Viewer )