leverage vs subservience

leverage

noun
  • The debt-to-equity ratio. 

  • The ability to earn very high returns when operating at high-capacity utilization of a facility. 

  • A force compounded by means of a lever rotating around a pivot; see torque. 

  • The use of borrowed funds with a contractually determined return to increase the ability to invest and earn an expected higher return, but usually at high risk. 

  • Any influence which is compounded or used to gain an advantage. 

verb
  • To use; to exploit; to manipulate in order to take full advantage (of something). 

subservience

noun
  • The state of being subservient. 

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