kilderkin n : an obsolete British unit of capacity equal to 18 Imperial gallons
The kilderkin is an old English unit of volume equal to half a barrel or two firkins. It was used as standard size for brewery casks. The word kilderkin comes from Dutch for a small cask. The kilderkin has historically been in the general range of 16 to 18 gallons. Based on the current imperial barrel of 36 gallons the following conversions are possible.
Kilderkin in Russian: Килдеркин