quicksilver vs spastic

quicksilver

adj
  • Unpredictable, erratic or fickle; mercurial. 

noun
  • The metal mercury. 

  • An amalgam of mercury and tin applied to the backs of mirrors, quicksilvering. 

verb
  • To overlay with quicksilver. 

  • To treat with quicksilver. 

spastic

adj
  • Hyperactive, excited, and acting in a random manner. 

  • Of or relating to spastic paralysis. 

  • Of, relating to, or affected by spasm. 

  • Clumsy. 

noun
  • A stupid, clumsy person. 

  • A person affected by spastic paralysis or spastic cerebral palsy. 

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