noun
quart
KWORT/kwɔːrt/
A unit of volume equal to one quarter of a gallon.
Four quart containers stand beside a gallon jug.

Etymology
The root means “fourth”: a quart is a fourth part applied specifically to liquid capacity. The whole being divided in this measure is a gallon.
In context
for a general recipe we used one cup of Ashes for every one quart of water