baffle vs end-run

baffle

noun
  • An architectural feature designed to confuse enemies or make them vulnerable. 

  • A device used to dampen the effects of such things as sound, light, or fluid. Specifically, a baffle is a surface which is placed inside an open area to inhibit direct motion from one part to another, without preventing motion altogether. 

  • A lever for operating the throttle valve of a winding engine. 

verb
  • To struggle in vain. 

  • To bewilder completely; to confuse or perplex. 

end-run

How often have the words baffle and end-run occurred in a corpus of books? (source: Google Ngram Viewer )