kilderkin

Etymology
Late, from , a variant of , itself a diminutive of. See.

Noun

 * 1) A small barrel.
 * 2) An old English liquid measure, usually being half a barrel; containing 18 English beer gallons, or 83.178 L.
 * 3) * 1882: 23 Hen. VIII, cap. 4... The barrel of beer is to hold 36 gallons, the kilderkin 18 gallons the firkin 9. But the barrel, kilderkin, and firkin of ale are to contain 32, 16, and 8 gallons. &mdash; James Edwin Thorold Rogers, A History of Agriculture and Prices in England, Volume 4, p. 205.