electrocution vs gassing

electrocution

noun
  • Deliberate execution by electric shock, usually involving an electric chair. 

  • A severe electric shock, whether fatal or not. 

  • The accidental death or suicide by electric shock. 

gassing

noun
  • The liberation of hydrogen from an overcharged battery due to electrolysis of the electrolyte. 

  • boasting; insincere or empty talk 

  • Any similar process of singeing. 

  • The process of passing cotton goods between two rollers and exposing them to numerous minute jets of gas to burn off the small fibres. 

  • Poisoning by noxious gas. 

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