bedevil vs beleaguer

bedevil

verb
  • To harass or cause trouble for; to plague. 

  • To perplex or bewilder. 

beleaguer

verb
  • To vex, harass, or beset. 

  • To besiege; to surround with troops. 

  • To exhaust. 

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