In both adults a surfeit of prudence and a surfeit of energy, and with the couple two boys still pretty much all soft surfaces, young children of youthful parents, keenly attractive and in good health and incorrigible only in their optimism.
-- Philip Roth, The Plot Against America
She peered at the parents, imagining their hearts like machines, manufacturing surfeit upon surfeit of love for their children, and then wondered how something could be so awesome and so utterly powerless.
-- Chris Adrian, The Great Night
Surfeit is a very old English word. It is recorded as early as 1393. It comes from the Latin roots sur- meaning "over" and facere meaning "to do."