dominance vs rulership

dominance

noun
  • Being in a position of power, authority or ascendancy over others. 

  • The state of being dominant; of prime importance; supremacy. 

  • The superior development of or preference for one side of the body or one of a pair of organs; such as being right-handed. 

  • The property of a gene such that it suppresses the expression of its allele. 

rulership

noun
  • A position in which one rules or has sovereignty over others. 

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