pussy-cat vs wild cat

pussy-cat

noun
  • A pet domestic cat; a pussy. 

  • A gentle or soft-hearted person. 

  • The silky catkin of various willows. 

wild cat

noun
  • A feral cat. 

  • An undomesticated felid, as tigers or lions. 

How often have the words pussy-cat and wild cat occurred in a corpus of books? (source: Google Ngram Viewer )