everyday vs nocturnal

everyday

adj
  • appropriate for ordinary use, rather than for special occasions 

  • commonplace, ordinary 

noun
  • the ordinary or routine day or occasion 

nocturnal

adj
  • Taking place at night, nightly. 

  • Primarily active during the night. 

noun
  • A device for telling the time at night, rather like a sundial but read according to the stars. 

  • A person or creature that is active at night. 

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