prepotency vs superiority

prepotency

noun
  • The quality or condition of being prepotent; predominance. 

  • The capacity, on the part of one of the parents, as compared with the other, to transmit more than his or her own share of characteristics to their offspring. 

superiority

noun
  • The state of being superior. 

  • The right which the superior enjoys in the land held by the vassal. 

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