bibcock vs egress

bibcock

noun
  • An appliance (typically a valve with a threaded outlet) allowing the provision of hose connections outside of buildings. 

egress

noun
  • The process of exiting or leaving. 

  • The end of the transit of a celestial body through the disk of an apparently larger one. 

  • An exit or way out. 

verb
  • To exit or leave; to go or come out. 

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