accrue vs amp

accrue

verb
  • To increase, to rise 

  • To become an enforceable and permanent right. 

  • To accumulate. 

  • To reach or come to by way of increase; to arise or spring up because of growth or result, especially as the produce of money lent. 

  • To be incurred as a result of the passage of time. 

amp

verb
  • To intensify or increase. 

  • To connect to amplifiers. 

  • To excite. 

  • To amplify. 

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