blench vs flinch

blench

verb
  • To hinder; obstruct; disconcert; foil. 

  • To deceive; cheat. 

  • To fly off; to turn aside. 

  • To shrink; start back; give way; flinch; turn aside or fly off. 

  • To quail. 

  • To draw back from; shrink; avoid; elude; deny, as from fear. 

noun
  • A deceit; a trick. 

  • A sidelong glance. 

flinch

verb
  • To dodge (a question), to avoid an unpleasant task or duty 

  • To make a sudden, involuntary movement in response to a (usually negative) stimulus; to cringe. 

  • To let the foot slip from a ball, when attempting to give a tight croquet. 

noun
  • The slipping of the foot from a ball, when attempting to give a tight croquet. 

  • A reflexive jerking away. 

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