hashish vs tisane

hashish

noun
  • A cannabis extract. 

  • Marijuana generally. 

  • The leaves and tender parts of the Indian hemp plant (which are intoxicating), which are dried for either chewing or smoking. 

tisane

noun
  • A medicinal drink, originally made from barley soaked in water. 

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