billy vs ovine

billy

noun
  • A male goat; a ram. 

  • A good friend. 

  • A billy club. 

  • A billy goat. 

  • A slubbing or roving machine. 

  • A bong for smoking marijuana. 

  • A tin with a swing handle used to boil tea over an open fire; a billycan; a billypot. 

  • A condom. 

ovine

noun
  • An animal from the genus Ovis; a sheep. 

  • A person regarded as resembling a sheep in character; one who is acquiescent, easily influenced, passive, or willing to follow a leader blindly; a sheep. 

adj
  • Resembling a sheep in character; acquiescent, easily influenced, passive, or willing to follow a leader blindly. 

  • Of, being, pertaining to, or resembling a sheep; also, (not comparable) of an animal: from the genus Ovis. 

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