The term "sextarii" refers to an ancient Roman unit of measurement used primarily for dry volume. One sextarius is equivalent to about 0.5 liters or approximately 1.06 pints. It was commonly used to measure grains, liquids, and other commodities in the Roman marketplace. In Roman society, the sextarius played a crucial role in trade and commerce. It was part of a larger system of measurements that included other units like the modius and amphora. Understanding these measurements was essential for both merchants and consumers in ensuring fair transactions.