caput vs whip hand

caput

noun
  • The top or superior part of a thing. 

  • A knob-like protuberance or capitulum. 

  • The head. 

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

whip hand

noun
  • An advantage over another; the dominant position. 

  • The hand in which a horse rider holds the whip. 

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