Tierce (unit)

A "tierce" is an archaic unit of measurement that was used to describe a specific volume, particularly in the context of liquids. In the historical context, a tierce is typically equal to one-third of a tun, which is an old unit used for measuring wine and other liquids. In more specific terms, one tierce is equivalent to approximately 42 gallons in the United States or about 159 liters.