descriptive vs normative

descriptive

adj
  • Of, relating to, or providing a description. 

  • Describing and seeking to classify, as opposed to normative or prescriptive. 

  • Of an adjective, stating an attribute of the associated noun (as heavy in the heavy dictionary). 

  • Describing the structure, grammar, vocabulary and actual use of a language. 

noun
  • An adjective (or other descriptive word) 

normative

noun
  • A regulation imposed to preserve a norm. 

adj
  • Conforming to a norm or norms. 

  • Attempting to establish or prescribe a norm. 

  • Of or pertaining to a norm or standard. 

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