caput vs noddle

caput

noun
  • The head. 

  • A knob-like protuberance or capitulum. 

  • The top or superior part of a thing. 

  • The council or ruling body of the University of Cambridge prior to the constitution of 1856. 

noddle

noun
  • The head; the part of the body of an animal or human which contains the brain, mouth and main sense organs. 

  • The head as the seat of mental capacity or intellect. 

verb
  • To nod repeatedly. 

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