doze vs hypersomnia

doze

noun
  • A light, short sleep or nap. 

verb
  • To bulldoze. 

  • To sleep lightly or briefly; to nap, snooze. 

  • To make dull; to stupefy. 

hypersomnia

noun
  • Excessive sleepiness. 

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