beg the question vs cavil

beg the question

verb
  • To engage in the logical fallacy of begging the question (petitio principii). 

  • To sidestep or fail to address a question. 

  • To raise or prompt a question. 

cavil

verb
  • To criticise for petty or frivolous reasons. 

noun
  • A petty or trivial objection or criticism. 

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