spile
/spʌɪl
/noun
1A small wooden peg or spigot for stopping a cask.Before beginning, sterilize both the spile and the jug with boiling water.
1.1North American A small wooden or metal spout for tapping the sap from a sugar maple.
2A large, heavy timber driven into the ground to support a superstructure.Into this hole, tap in the spile with a wooden mallet.
verb [with object] chiefly US or dialect
Broach (a cask) with a peg in order to draw off liquid.Well, firstly I'm still adamant that you can't beat a pint of cask-conditioned ale, properly tapped and spiled, at the peak of perfection.
Origin
Early 16th century: from Middle Dutch, Middle Low German, 'wooden peg'; in sense 2 of the noun apparently an alteration of pile2.