beleaguer vs circumvent

beleaguer

verb
  • To besiege; to surround with troops. 

  • To exhaust. 

  • To vex, harass, or beset. 

circumvent

verb
  • to surround or besiege 

  • to outwit or outsmart 

  • to avoid or get around something; to bypass 

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