importune vs tolerate

importune

verb
  • To bother, irritate, trouble. 

  • To harass with persistent requests. 

  • To approach to offer one's services as a prostitute, or otherwise make improper proposals. 

tolerate

verb
  • To bear, withstand. 

  • To allow or permit without explicit approval, usually if it is perceived as negative. 

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