I / inter-prĕtĭum
noun

inter-prĕtĭum

gen. inter-prĕti · gender neuter · decl. 2nd
the difference between the buying and selling price; profit
the difference between the buying and selling price, profit (post-class.), Amm. 28, 1, 18; cf.: interpretium παράλληλον, Gloss. Philox.