refund vs requite

refund

verb
  • To return (money) to (someone); to reimburse. 

noun
  • An amount of money returned. 

requite

verb
  • To return (usually something figurative) that has been given; to repay; to recompense 

noun
  • requital 

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