To reduce from a gross amount by subtracting deductions; to deduct from a total sum.
From dis- (reverse or reduce) + gross (from Old French gros, 'large'). This is a financial or accounting term meaning to take away from the gross total to arrive at a net figure.
Accountants have used 'disgross' for centuries—it's the opposite of marking up—and reveals how business language mirrors the structure of other pairs like 'charge' and 'discharge.'
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