mulberry vs wax apple

mulberry

noun
  • The fruit of this tree. 

  • Any of several trees, of the genus Morus, having edible fruits. 

  • A dark purple colour tinted with red. 

adj
  • Of a dark purple color tinted with red. 

wax apple

noun
  • the fruit of this plant 

  • a tropical plant, Syzygium samarangense, bearing an edible fruit 

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