garget vs pokeroot

garget

noun
  • Pokeweed. 

  • An inflammation on a cow's or sheep's udder. 

  • A distemper in pigs accompanied by staggering and loss of appetite. 

pokeroot

noun
  • Synonym of pokeweed 

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