derisive vs piff

derisive

noun
  • A derisive remark. 

adj
  • Deserving or provoking derision or ridicule. 

  • Expressing or characterized by derision; mocking; ridiculing. 

piff

noun
  • Piffle; nonsense; rubbish. 

verb
  • To throw something vigorously. 

adj
  • good or attractive. 

intj
  • An exclamation of annoyance or contempt; pish; pshaw. 

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