English economist who advocated the use of government monetary and fiscal policy to maintain full employment without inflation (1883-1946)
"John Maynard Keynes is credited with advocating that governments should actively manage spending and interest rates to ensure full employment."
An English surname, from Old French.
"The historical economist John Maynard Keynes carried an English surname derived from Old French."
The word Keynes comes from the Old French place name Cahaignae. It entered English as an alteration of that specific location in Normandy.