recapitulate vs retract

recapitulate

verb
  • To reproduce or closely resemble (as in structure or function). 

  • (biology, of an organism) To mirror or repeat in analogous form, especially in reference to an individual's development passing through stages corresponding to the species' stages of evolutionary development. 

  • To summarize or repeat in concise form. 

retract

verb
  • To draw (an extended body part) back into the body. 

  • To avert (one's eyes or a gaze). 

  • To decline or fail to do something promised; to break one's word. 

  • To pull (something) back or back inside. 

  • Of something said or written (such as published academic work): to take back or withdraw. 

  • To take back or withdraw (something that has been said or written); to disavow, to repudiate. 

  • Originally in chess and now in other games as well: to take back or undo (a move); specifically (card games) to take back or withdraw (a card which has been played). 

  • To break or fail to keep (a promise, etc.); to renege. 

  • To draw back; to draw up; to withdraw. 

  • To pronounce (a sound, especially a vowel) farther to the back of the vocal tract. 

  • To cancel or take back (something, such as an edict or a favour or grant previously bestowed); to rescind, to revoke. 

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