caput vs noon

caput

noun
  • The top or superior part of a thing. 

  • A knob-like protuberance or capitulum. 

  • The head. 

  • The council or ruling body of the University of Cambridge prior to the constitution of 1856. 

noon

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. 

verb
  • To relax or sleep around midday 

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