quelling vs shrinkage

quelling

noun

  • The act by which something is quelled. 

adj

  • causing something to quell or be quelled 

shrinkage

noun

  • The act of shrinking, or the proportion by which something shrinks. 

  • The reduction in size of the male genitalia when cold, such as from immersion in cold water. 

  • The loss of merchandise through theft, spoilage, and obsolescence. 

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