spigot

Concise Oxford English Dictionary © 2008 Oxford University Press:
spigot /ˈspɪgət/

▶noun

• 1 a small peg or plug, especially for insertion into the vent of a cask.

• 2 US a tap.

  ■ a device for controlling the flow of liquid in a tap.

• 3 the plain end of a section of a pipe fitting into the socket of the next one.

– origin ME: perh. an alt. of Provençal espigou(n), from L. spiculum, dimin. of spicum, var. of spica (see spica).