permissive vs shockable

permissive

adj
  • Giving permission, or predisposed to give it; lenient. 

  • That allows the replication of viruses. 

  • Open to the public by permission of the landowner. 

shockable

adj
  • Easily shocked. 

  • Capable of being treated by defibrillator. 

  • Able to be shocked. 

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