contribute vs lend

contribute

verb
  • To give something that is or becomes part of a larger whole. 

lend

verb
  • To afford; to grant or furnish in general. 

  • To borrow. 

  • To make a loan. 

  • To be suitable or applicable, to fit. 

  • To allow to be used by someone temporarily, on condition that it or its equivalent will be returned. 

noun
  • The loins; flank; buttocks. 

  • Loan (permission to borrow (something)). 

  • The lumbar region; loin. 

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