Sentence:  One of these is 1 Hen. V, cap. 10, defining the <WSD>quarter</WSD> of corn [i.e., grain] to be eight struck bushels, and putting fines on purveyors who take more. 
Meaning of the word marked with <WSD> tags:  The quarter-ton or tun, divided into 8 bushels, the medieval English unit of volume and weight named by the Magna Carta as the basis for measures of wine, ale, and grain