locomotion vs stiffness

locomotion

noun
  • A dance, originally popular in the 1960s, in which the arms are used to mimic the motion of the connecting rods of a steam locomotive. 

  • The ability to move from place to place, or the act of doing so. 

  • Self-powered motion by which a whole organism changes its location through walking, running, jumping, crawling, swimming, brachiating or flying. 

stiffness

noun
  • inelegance; a lack of relaxedness. 

  • rigidity or a measure of rigidity. 

  • inflexibility or a measure of inflexibility. 

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

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