quart
Meaning
A unit of liquid capacity equal to a quarter of a gallon or two pints, equivalent to approximately 1.136 liters in the UK and 0.946 liters in the US.
A unit of dry capacity equal to two dry pints or one eighth of a peck.
Structure
Usage
The recipe calls for a quart of milk.
He bought a quart of oil for the lawnmower.
In the US, a quart is slightly less than a liter.
Etymology
The word 'quart' has a direct and logical lineage from the Latin 'quartus', meaning 'fourth'. It entered Middle English via Old French 'quarte', referring to a fourth part of a larger measure. The term's journey reflects the historical use of fractional units in systems of weights and measures, where a quart was literally a quarter of a gallon. This etymological path cleanly illustrates how a simple numerical concept became standardized as a specific unit of volume in the modern era.
Analysis
The morpheme 'quart' originates from the Latin 'quartus', meaning 'fourth' or 'quarter'. It functions as the core root conveying the concept of a fourth part.