ancon vs cubitus

ancon

noun
  • The elbow. 

  • A console that appears to support a cornice. 

  • The olecranon. 

cubitus

noun
  • The elbow, or the corresponding joint in the forelimb of a quadruped. 

  • One of the major veins of the insect wing, between the media and the postcubitus; the vein running along the dorsal edge of the discal cell. 

  • The forearm; the arm from the elbow to fingertip, or the corresponding portion of a jointed limb of an animal that uses the limb for locomotion or grasping. 

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