emetogen vs vomitory

emetogen

noun
  • Synonym of emetic 

vomitory

noun
  • A substance that induces vomiting; an emetic 

  • The entrance into a theater or other large public venue, where masses of people are disgorged into the stands; a vomitorium 

adj
  • Inducing vomiting; emetic 

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