jackstay vs rein

jackstay

noun
  • A line (rope, webbing or cable), attached to a boat at the ends, to which a safety harness can be clipped to restrain falling in rough conditions and to prevent falling overboard. 

  • A stay (rope, bar or batten), running along a ship's yard, to which is attached the head of a square sail. 

  • A cable between two ships or from a ship to a fixed point which can be used to support a load during transfer of personnel or materiel along the cable. 

  • A line fixed at both ends, which may be used to guide a load or a diver along the route of the line. Uses include guidance to and from the underwater work site, and as a means of controlling an underwater search. 

rein

noun
  • A strap or rope attached to a bridle or bit, used to control a horse, animal or young child. 

  • The inward impulses; the affections and passions, formerly supposed to be located in the area of the kidneys. 

  • An instrument or means of curbing, restraining, or governing. 

verb
  • To restrain; to control; to check. 

  • To obey directions given with the reins. 

  • To direct or stop a horse by using reins. 

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