jab vs scarification

jab

noun
  • A medical hypodermic injection (vaccination or inoculation) 

  • A mild verbal insult. 

  • A quick stab or blow; a poking or thrusting motion. 

  • A short straight punch. 

  • A vaccination, whether or not delivered via conventional injection. 

verb
  • To give someone an injection 

  • To poke or thrust abruptly, or to make such a motion. 

  • To deliver a quick punch. 

scarification

noun
  • A route of administration for some vaccinations and tests: rather than hypodermic injection, the site is inoculated intradermally not with any injection but rather only with small, shallow pricks or scratches; the needle is not hollow. 

  • A medieval form of penance in which the skin was damaged with a knife or hot iron. 

  • The act of scarifying: raking the ground harshly to remove weeds, etc. 

  • The scratching, etching, burning / branding, or superficially cutting designs, pictures, or words into the skin as a permanent body modification. 

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