noontide vs sext

noontide

noun
  • midday, noon 

sext

noun
  • Noon, reckoned as the sixth hour of daylight. 

  • An electronic message, especially one sent by cell phone, involving sexual language or images. 

  • A sixth: an interval of six diatonic degrees. 

  • The service appointed for this hour. 

verb
  • To send a sext. 

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