noon vs unbend

noon

verb
  • To relax or sleep around midday 

noun
  • The highest point; culmination. 

  • The letter ن in the Arabic script. 

  • The time of day when the sun is in its zenith; twelve o'clock in the day, midday. 

unbend

verb
  • To relax in exertion, attention, severity, or the like 

  • To remove a bend so as to make, or allow to become, straight. 

  • To cast loose or untie 

  • To cease to be bent; to become straight. 

  • To release (a load) from a strain or from exertion; to set at ease for a time; to relax. 

  • To unfasten sails from the spars or stays to which are attached for use. 

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