currency vs hiaqua

currency

noun
  • Money or other items used to facilitate transactions. 

  • The state of being current; general acceptance or recognition. 

  • Paper money. 

hiaqua

noun
  • Beads or shells, especially as placed on strings and valued as ornaments or a sort of currency. 

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