betony vs elixir

betony

noun
  • Stachys officinalis (syn. Betonica officinalis, an herb used in traditional European medicine. 

  • Any plant of the genus Stachys. 

  • Any plant of the genus Pedicularis (louseworts). 

elixir

noun
  • A substance or liquid which is believed to cure all ills and give eternal life. 

  • A sweet flavored liquid (usually containing a small amount of alcohol) used in compounding medicines to be taken by mouth in order to mask an unpleasant taste. 

  • A liquid which converts lead to gold. 

  • The alleged cure for all ailments; cure-all, panacea. 

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