impact vs stonewall

impact

noun
  • A forced impinging. 

  • A significant or strong influence or effect. 

  • The striking of one body against another; collision. 

  • The force or energy of a collision of two objects. 

verb
  • To stamp or impress onto something. 

  • To collide or strike, the act of impinging. 

  • To significantly or strongly influence or affect; to have an impact on. 

  • To compress; to compact; to press into something or pack together. 

stonewall

noun
  • An obstruction. 

  • An alcoholic drink popular in colonial America, consisting of apple cider (or sometimes applejack) mixed with rum (or sometimes gin or whisky). 

  • A refusal to cooperate. 

adj
  • Certain, definite. 

verb
  • To obstruct. 

  • To refuse to answer or cooperate, especially in supplying information. 

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