importune vs speak to

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. 

speak to

verb
  • To (figuratively) resonate with; to feel emotionally relevant to. 

  • To address a particular topic. 

  • To give evidence regarding something; to attest or provide evidence for; to bespeak. 

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