adarme vs drachma

adarme

noun
  • A traditional Spanish unit of mass, equivalent to about 1.8 g. 

  • Synonym of peso, during periods when it was a Spanish coin notionally equivalent to an adarme of gold. 

drachma

noun
  • An Ancient Greek weight of about 66.5 grains, or 4.3 grams. 

  • A coin worth one drachma. 

  • A later Greek weight equal to a gram. 

  • The currency of Greece in ancient times and again from 1832 until 2001, with the symbol ₯, since replaced by the euro. 

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