horsepower vs might

horsepower

noun
  • Strength. 

  • Power derived from the motion of a horse. 

  • A nonmetric unit of power (symbol hp) with various definitions, for different applications. The most common of them is probably the mechanical horsepower, approximately equal to 745.7 watts. 

  • A metric unit (symbol often PS from the German abbreviation), approximately equal to 735.5 watts. 

might

noun
  • Physical strength or force. 

  • The ability to do something. 

  • Power, strength, force or influence held by a person or group. 

verb
  • simple past tense of may Used to indicate permission in past tense. 

  • Used to indicate conditional or possible actions. 

  • Even though. 

  • Used in polite requests for permission 

  • Used to indicate a desired past action that was not done. 

  • simple past tense of may Used to indicate possibility in past tense. 

  • Used to express certainty. 

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