knock out vs spang

knock out

verb
  • To complete, especially in haste; knock off. 

  • To fall asleep, especially suddenly. 

  • To lose the scent of hounds in fox-hunting. 

  • To eliminate from a contest or similar. 

  • To put to sleep. 

  • To render unconscious, as by a blow to the head. 

  • To strike or bump (someone or something) out. 

  • To exhaust. 

  • To cause a mechanism to become non-functional by damaging or destroying it. 

  • To communicate (a message) by knocking. 

spang

verb
  • To hitch; fasten. 

  • To set with bright points: star or spangle. 

  • To cause to spring; set forcibly in motion; throw with violence. 

  • To strike or ricochet with a loud report 

  • To leap; spring. 

noun
  • A bound or spring; a leap. 

  • A span. 

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