pricking vs spasm

pricking

noun
  • A sensation that pricks. 

  • The act of piercing or puncturing with a sharp point. 

  • The driving of a nail into a horse's foot so as to produce lameness. 

  • A nicking. 

  • The mark or trace left by a hare's foot; a prick. 

  • The act of tracing a hare by its footmarks. 

spasm

noun
  • A violent, excruciating seizure of pain. 

  • A sudden, involuntary contraction of a muscle, a group of muscles, or a hollow organ. 

  • A sudden and temporary burst of energy, activity, or emotion. 

verb
  • To produce and undergo a spasm or series of spasms. 

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