cower vs recoil

cower

verb
  • To crouch or cringe, or to avoid or shy away from something, in fear. 

  • To cause to cower; to frighten into submission. 

recoil

verb
  • To pull back, especially in disgust, horror or astonishment. 

  • To quickly push back when fired 

noun
  • A starting or falling back; a rebound; a shrinking. 

  • The energy transmitted back to the shooter from a firearm which has fired. Recoil is a function of the weight of the weapon, the weight of the projectile, and the speed at which it leaves the muzzle. 

  • An escapement in which, after each beat, the scape-wheel recoils slightly. 

  • The state or condition of having recoiled. 

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