dominion vs leg up

dominion

noun
  • predominance; ascendancy 

  • A kingdom, nation, or other sphere of influence; governed territory. 

  • Power or the use of power; sovereignty over something; stewardship, supremacy. 

  • kingdom 

  • An order of angel in Christian angelology, ranked above virtues and below thrones. 

leg up

noun
  • A boost, a sudden improvement; an advantage, an edge. 

  • Assistance, help given to get started or overcome a problem or obstacle. 

  • The act of assisting another's progress over a wall or other obstacle by forming a step for one of their feet with one's hands. 

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