chandoo vs meconium

chandoo

noun
  • An extract or preparation of opium, used in China and India for smoking. 

meconium

noun
  • A dark green mass, the contents of the fetal intestines during the later stages of mammalian gestation, that forms the first feces of the newborn. 

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