beleaguer vs concur

beleaguer

verb
  • To besiege; to surround with troops. 

  • To exhaust. 

  • To vex, harass, or beset. 

concur

verb
  • To converge. 

  • To meet in the same point; to combine or conjoin; to contribute or help towards a common object or effect. 

  • To agree (in action or opinion); to have a common opinion; to coincide; to correspond. 

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