deathblow vs douse

deathblow

noun
  • A strike or blow that leads to death, especially a coup de grace. 

  • Something that prevents the completion, or ends the existence, of a project etc.; a fatal setback. 

douse

noun
  • A blow or strike, especially to the face. 

  • A sudden plunging into water. 

verb
  • To put out; to extinguish. 

  • To strike or lower in haste; to slacken suddenly 

  • To plunge suddenly into water; to duck; to immerse. 

  • To strike, beat, or thrash. 

  • To fall suddenly into water. 

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