inhumation vs worm food

inhumation

noun
  • The act of burial. 

  • arenation 

  • The act of burying vessels in warm earth in order to expose their contents to a steady moderate heat; the state of being thus exposed. 

worm food

noun
  • One or more corpses, especially in a state of decay; remains. 

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