crankshaft vs leverage

crankshaft

noun
  • A rotating shaft that drives (or is driven by) a crank. 

verb
  • To deform in such a manner that part of the rod or bolt is displaced sideways, offset from the longitudinal axis of the part, but remains parallel with the part's main longitudinal axis, with the final shape somewhat resembling a crankshaft. 

leverage

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

  • The debt-to-equity ratio. 

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

  • 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). 

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