forbid vs necropsy

forbid

verb
  • To disallow; to proscribe. 

  • To oppose, hinder, or prevent, as if by an effectual command. 

  • To deny, exclude from, or warn off, by express command. 

necropsy

verb
  • The act of performing a necropsy. 

noun
  • The pathological examination of a corpse, particularly to determine cause of death. 

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