isonomia vs synonymy

isonomia

noun
  • Equality before the law; possession of equal rights; equal distribution of rights and privileges. 

synonymy

noun
  • The quality of being synonymous; sameness of meaning. 

  • The collective synonyms (all the names referring to a particular taxon, except the correct name) 

  • The state of not being a correct name, of being a synonym 

  • A list or collection of synonyms, often compared and contrasted. 

  • The study of synonyms. 

  • A system of synonyms. 

  • The collective synonyms (all the names referring to the same taxon, including the correct name) 

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