spigot vs turncock

spigot

noun
  • A water tap: a faucet or sillcock. 

  • The plug of a faucet, tap or cock. 

  • A pin or peg used to stop the vent in a cask. 

verb
  • To block with a spigot. 

  • To insert (a spigot). 

turncock

noun
  • A tap or faucet that regulates the flow of a fluid. 

  • A person employed to turn on the water for the mains, to regulate the fireplugs, etc. for a water company. 

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