noon vs stay up

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. 

stay up

verb
  • To remain awake, to not go to bed. 

  • To maintain an erection. 

  • To remain in a raised or upright position. 

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