inertness vs narcosis

inertness

noun
  • Quality of being unreactive with other chemical compounds or elements. 

  • Absence of the power of self-motion; inertia. 

  • Lack of activity or exertion; habitual indisposition to action or motion 

narcosis

noun
  • Unconsciousness caused by a drug, anaesthetic or other chemical substance. 

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