denominative vs improper noun

denominative

noun
  • A word, often a verb, that is derived from a noun or adjective. 

adj
  • Being a name. 

  • Possessing, or capable of possessing, a distinct denomination or designation; denominable. 

  • Deriving from a noun, or from an adjective, such as the verb destruct from the noun destruction. 

improper noun

noun
  • noun that describes something general (rather than that which is purely unique) 

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