pike vs turnpike

pike

verb
  • To equip with a turnpike. 

  • To assume a pike position. 

  • Often followed by on or out: to quit or back out of a promise. 

  • To prod, attack, or injure someone with a pike. 

  • To bet or gamble with only small amounts of money. 

noun
  • A large haycock (“conical stack of hay left in a field to dry before adding to a haystack”). 

  • Any carnivorous freshwater fish of the genus Esox, especially the northern pike, Esox lucius. 

  • A very long spear used two-handed by infantry soldiers for thrusting (not throwing), both for attacks on enemy foot soldiers and as a countermeasure against cavalry assaults. 

  • A sharp, pointed staff or implement. 

  • A position with the knees straight and a tight bend at the hips with the torso folded over the legs, usually part of a jack-knife. 

  • Especially in place names: a hill or mountain, particularly one with a sharp peak or summit. 

  • A gypsy, itinerant tramp, or traveller from any ethnic background; a pikey. 

turnpike

verb
  • To form (a road, etc.) in the manner of a turnpike road, or into a rounded form, as the path of a road. 

noun
  • A trajectory on a finite time interval that satisfies an optimality criterion which is associated with a cost function. 

  • A gate or bar set across a road to stop carriages, animals, and sometimes people, until a toll is paid, 

  • A frame consisting of two bars crossing each other at right angles and turning on a post or pin, to hinder the passage of animals, but admitting a person to pass between the arms; a turnstile. 

  • A beam filled with spikes to obstruct passage; a cheval de frise. 

  • A toll road, especially a toll expressway. 

  • A winding stairway. 

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