firkin

1. A small wooden barrel or covered vessel.
2. Any of several British units of capacity, usually equal to about ¹/₄ of a barrel or 9 gallons (34 liters).

Origin:

Origin: Middle English ferken, ferdekin

Origin: , probably from Middle Dutch *verdelkijn

Origin: , diminutive of veerdel, one-fourth

Origin: : veerde, fourth; see k^wetwer- in Indo-European roots

Origin: + deel, part; see dail- in Indo-European roots