garble vs overdraw

garble

verb
  • To pick out such parts (of a text) as may serve a purpose; to mutilate; to pervert 

  • To make false by mutilation or addition 

noun
  • Confused or unintelligible speech. 

overdraw

verb
  • To draw over the top of existing content. 

  • To use a device for shooting arrows shorter than the draw of the bow. 

  • To withdraw more money from an account than there is credit; to make an overdraft 

noun
  • The process by which, during the rendering of a three-dimensional scene, a pixel is replaced by one that is closer to the viewpoint, as determined by their Z coordinates. 

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