English
Keynesian
From Keynes + -ian.
Today it means
adj Of or pertaining to an economic theory based on the ideas of John Maynard Keynes, as put forward in his book The General Theory of Employment, Interest and Money, published in 1936 in response to the Great Depression of the 1930s, and extensively extended by a large body of followers before and after his death in 1946.
Language periods are conventional ranges, not dates for this word.
Etymograph / Keynesian