Used only in John 2:6; the Attic amphora, equivalent to the Hebrew bath (q.v.), a measure for liquids containing about 8 7/8 gallons.

Noah Webster's New International Dictionary of the English Language

1. (n.) A varying measure of capacity, usually being the fourth part of a barrel; specifically, a measure equal to nine imperial gallons.

2. (n.) A small wooden vessel or cask of indeterminate size, -- used for butter, lard, etc.