deactivate vs shut down

deactivate

verb
  • to make something inactive or no longer effective 

  • to remove a person or piece of hardware from active military service 

  • to prevent the action of a biochemical agent (such as an enzyme) 

shut down

verb
  • To turn off or stop. 

  • To pass (another vehicle), especially quickly. 

  • To close, terminate, or end. 

  • To emotionally withdraw into oneself as a defense mechanism; to block out external stressors. 

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