heterobasionym vs metonymic

heterobasionym

noun
  • Synonym of synonym 

metonymic

noun
  • Synonym of metonym, an instance of metonymy. 

adj
  • Of, or relating to, a word or phrase that names an object from a single characteristic of it or of a closely related object. 

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