lend vs swap out

lend

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

  • To borrow. 

  • To afford; to grant or furnish in general. 

  • To make a loan. 

  • To be suitable or applicable, to fit. 

noun
  • The loins; flank; buttocks. 

  • Loan (permission to borrow (something)). 

  • The lumbar region; loin. 

swap out

verb
  • To exchange (something or someone) for an unused (or less-used) equivalent. 

  • To exchange (something) for (something else). (usually followed by with or for) 

  • To transfer (memory contents) into a swap file. 

noun
  • Anything that is swapped out for another; an exchange. 

  • A pre-prepared food item used in place of an unfinished food item in order to cut down the overall preparation time during filming. 

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