When you have extra work to do that keeps accumulating, you have a backlog. Sometimes people stay late at their jobs to take care of a backlog.
A backlog of tasks might slow down an ordinary day at an office or store, or require workers to come in on the weekend to catch up. In 1680, a backlog meant "a large log placed at the back of a fireplace," and by the 1880s it came to also mean "something stored for later use." It wasn't until the early 20th century that a backlog most often referred to "extra unfulfilled orders."
Primary Meanings of backlog
an accumulation of jobs not done or materials not processed that are yet to be dealt with (especially unfilled customer orders for products or services)
accumulate and create a backlog
the large log at the back of a hearth fire
n something kept back or saved for future use or a special purpose
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a supply or stock held in reserve for future use (especially in emergencies)
the amount of fuel remaining
reserve account, reserve fund
funds taken out of earnings to provide for anticipated future payments
a place for storing whole blood or blood plasma
a place for storing and preserving corneas that are obtained from human corpses immediately after death; used for corneal transplantation to patients with corneal defects
a place where food is contributed and made available to those in need
land retired from crop cultivation and planted with soil-building crops; government subsidies are paid to farmers for their retired land
reserves that do not show up on the balance sheet (as by understating values)
any communal combination of funds
allowance, allowance account, valuation account, valuation reserve
a reserve fund created by a charge against profits in order to provide for changes in the value of a company's assets
- Type of:
(finance) profits that are not paid out as dividends but are added to the capital base of the corporation