deathwatch vs obit

deathwatch

noun
  • A vigil beside a dying person 

  • One who guards a condemned person before execution. 

  • A deathwatch beetle. 

obit

noun
  • A mass or other service held for the soul of a dead person. 

  • An obituary. 

  • A record of a person's death. 

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