mulberry vs purpurate

mulberry

adj
  • Of a dark purple color tinted with red. 

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

  • The fruit of this tree. 

  • A dark purple colour tinted with red. 

purpurate

adj
  • Of a purple colour. 

noun
  • A salt of purpuric acid. 

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