fleece vs swap out

fleece

verb
  • To con or trick (someone) out of money. 

  • To cover with, or as if with, wool. 

  • To shear the fleece from (a sheep or other animal). 

noun
  • A textile similar to velvet, but with a longer pile that gives it a softness and a higher sheen. 

  • Any soft woolly covering resembling a fleece. 

  • The fine web of cotton or wool removed by the doffing knife from the cylinder of a carding machine. 

  • Mat or felts composed of fibers, sometimes used as a membrane backer. 

  • An insulating wooly jacket 

  • Hair or wool of a sheep or similar animal 

  • Insulating skin with the wool attached 

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 fleece and swap out occurred in a corpus of books? (source: Google Ngram Viewer )