malkin vs pantherine

malkin

noun
  • A mop, especially one used to clean a baker's oven. 

  • A hare. 

pantherine

noun
  • Any animal of the genus Panthera. 

  • muscimol 

  • Any animal of the subfamily Pantherinae. 

adj
  • Like a panther, especially in colour. 

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