narcoleptic vs worn out

narcoleptic

adj
  • Pertaining to narcolepsy 

noun
  • One who suffers from narcolepsy 

worn out

adj
  • Damaged and useless due to hard or continued use. 

  • Exhausted or fatigued from exertion. 

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