pricking vs stiffness

pricking

noun
  • 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 sensation that pricks. 

  • A nicking. 

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

  • The act of tracing a hare by its footmarks. 

stiffness

noun
  • rigidity or a measure of rigidity. 

  • inelegance; a lack of relaxedness. 

  • inflexibility or a measure of inflexibility. 

  • muscular tension due to unaccustomed or excessive exercise or work; soreness. 

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