A surfeit of something is an amount which is too large. Rationing had put an end to a surfeit of biscuits long ago. = surplus. a surfeit of sth an amount of something that is too large or that is more than you need = excess (surfaire , from sur- ( SURCHARGE) + faire )
To feed so as to oppress the stomach and derange the function of the system; to overfeed, and produce satiety, sickness, or uneasiness; often reflexive; as, to surfeit one's self with sweets