kitty-cat vs pantherine

kitty-cat

noun

  • A domestic cat (subspecies Felis silvestris catus). 

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 kitty-cat and pantherine occurred in a corpus of books? (source: Google Ngram Viewer )