frequent vs normative

frequent

adj
  • Addicted to any course of conduct; inclined to indulge in any practice; habitual; persistent. 

  • Done or occurring often; common. 

  • Occurring at short intervals. 

verb
  • To visit often. 

normative

adj
  • Attempting to establish or prescribe a norm. 

  • Conforming to a norm or norms. 

  • Of or pertaining to a norm or standard. 

noun
  • A regulation imposed to preserve a norm. 

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