conn vs rein

conn

verb
  • To direct a ship; to superintend the steering of (a vessel); to watch the course of (a vessel) and direct the helmsman how to steer (especially through a channel, etc, rather than steer a compass direction). 

noun
  • The duty of directing a ship, usually used with the verb to have or to take and accompanied by the article "the." 

rein

verb
  • To obey directions given with the reins. 

  • To restrain; to control; to check. 

  • To direct or stop a horse by using reins. 

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. 

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