equivocate vs sidestep the issue

equivocate

verb
  • To render equivocal or ambiguous. 

  • To speak using double meaning; to speak ambiguously, unclearly or doubtfully, with intent to deceive. 

sidestep the issue

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