impact vs overhang

impact

verb
  • To collide or strike, the act of impinging. 

  • To stamp or impress onto something. 

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

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

noun
  • A significant or strong influence or effect. 

  • A forced impinging. 

  • The striking of one body against another; collision. 

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

overhang

verb
  • To impend. 

  • To hang over (something). 

noun
  • A fatty roll of pubis flab that hangs over one's genitals; a FUPA. 

  • The volume that tips the balance between the demand and the supply toward demand lagging supply. 

  • Anything that overhangs or protrudes over its base, such as a wave immediately before breaking, or a protruding cliff or rock wall. 

  • That portion of the roof structure that extends beyond the exterior walls of a building. 

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