dominance vs overlordship

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. 

overlordship

noun
  • The position or quality of being an overlord. 

  • The realm of overlords. 

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