nonchalance vs shakes

nonchalance

noun
  • Indifference, unconcern; carelessness; coolness; disregard, detachment. 

shakes

noun
  • A fit of trembling or shivering. 

  • A pattern of behavior including twitches, tics and spasms typical of withdrawal from addiction; usually following the. 

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