hedging vs purism

hedging

noun
  • The use of intentionally ambiguous or noncommittal statements. 

  • The act of one who hedges (in various senses). 

  • Any plant used to form a hedge. 

purism

noun
  • An insistence on pure or unmixed forms. 

  • An example of purist language etc. 

  • The desire to use words and forms derived from what is considered the native element in a given language instead of elements considered borrowed or foreign. 

  • An insistence on the traditionally correct way of doing things. 

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