dead to the world vs spark out

dead to the world

adj
  • Unconscious. 

  • Without social relationships or communication; without emotional or tangible bonds to others. 

  • Sound asleep. 

spark out

adj
  • Completely asleep or unconscious. 

verb
  • To render unconscious; to knock out. 

How often have the words dead to the world and spark out occurred in a corpus of books? (source: Google Ngram Viewer )