retreat vs tend

retreat

noun
  • 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. 

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

  • 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 

tend

verb
  • To be likely, or probable to do something, or to have a certain habit or leaning. 

  • To accompany as an assistant or protector; to care for the wants of; to look after; to watch; to guard. 

  • To kindle; ignite; set on fire; light; inflame; burn. 

  • To look after (e.g. an ill person.) 

  • To contribute to or toward some outcome. 

  • To manage (an anchored vessel) when the tide turns, to prevent it from entangling the cable when swinging. 

  • To make a tender of; to offer or tender. 

  • To wait (upon), as attendants or servants; to serve; to attend. 

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