Fiscal
Etymology
From Latin fiscalis, "of the state treasury," from fiscus, which meant a woven basket or purse used to hold money, and by extension the public treasury itself. The image of the state’s money-basket survives in every "fiscal year" and "fiscal policy."
adjective · /FIS-kul/
Relating to government revenue and spending — taxes, budgets, and public expenditure.
What it names
It is the label for one of the two great economic levers a government holds: how much it taxes and how much it spends, as opposed to how it manages money and interest rates.
Example
The government’s fiscal response to the downturn was a large package of spending and tax cuts.
Related idea
Fiscal policy is run by the treasury through taxes and spending; monetary policy is run by the central bank through interest rates and money supply.