haunch vs popliteus

haunch

noun
  • The area encompassing the upper thigh, hip and buttocks on one side of a human, primate, or quadruped animal, especially one that can sit on its hindquarters. 

  • A jerked underhand throw. 

  • The loin and leg of a quadruped, especially when used as food. 

  • A squat vertical support structure. 

verb
  • To provide with a haunch or supporting structure. 

  • To throw with an underhand movement. 

popliteus

noun
  • A small muscle at the back of the knee that aids in bending the knee and in the rotation of the lower leg. 

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