deficit (n.)

"a falling short or failure in amount," especially financially, 1782, from French déficit (late 17c.), from Latin deficit "it is wanting," an introductory word in clauses of inventory, third person singular present indicative of deficere "to fail, be deficient," from de "down, away" (see de-) + combining form of facere "to do, make" (from PIE root *dhe-"to set, put").