curb vs horsepower

curb

noun
  • A riding or driving bit for a horse that has rein action which amplifies the pressure in the mouth by leverage advantage placing pressure on the poll via the crown piece of the bridle and chin groove via a curb chain. 

  • Something that checks or restrains; a restraint. 

  • A swelling on the back part of the hind leg of a horse, just behind the lowest part of the hock joint, generally causing lameness. 

  • A concrete margin along the edge of a road; a kerb (UK, Australia, New Zealand) 

  • A sidewalk, covered or partially enclosed, bordering the airport terminal road system with adjacent paved areas to permit vehicles to off-load or load passengers. 

  • A raised margin along the edge of something, such as a well or the eye of a dome, as a strengthening. 

verb
  • To rein in. 

  • To bend or curve. 

  • To furnish with a curb, as a well; to restrain by a curb, as a bank of earth. 

  • To crouch; to cringe. 

  • To damage vehicle wheels or tires by running into or over a pavement curb. 

  • To check, restrain or control. 

  • To bring to a stop beside a curb. 

horsepower

noun
  • Power derived from the motion of a horse. 

  • Strength. 

  • 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. 

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