noon vs terce

noon

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

  • The highest point; culmination. 

  • The letter ن in the Arabic script. 

verb
  • To relax or sleep around midday 

terce

noun
  • The third hour of daylight (about 9 am). 

  • The service appointed for this hour. 

  • A widow's right, where she has no conventional provision, to a liferent of a third of the husband's heritable property. 

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