decrease vs shrivelling

decrease

noun
  • An amount by which a quantity is decreased. 

  • A reduction in the number of stitches, usually accomplished by suspending the stitch to be decreased from another existing stitch or by knitting it together with another stitch. See Decrease (knitting). 

verb
  • Of a quantity, to become smaller. 

  • To make (a quantity) smaller. 

shrivelling

noun
  • The act or process by which something shrivels. 

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