necropsy vs set out

necropsy

verb
  • The act of performing a necropsy. 

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

set out

verb
  • To start an activity with the intention of finishing it. 

  • To explain something, or give exact details, usually in writing. 

  • To go out, leave. 

  • To position, to put in a position 

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