"side of bacon," M.E. flicche, from O.E. flicce, related to O.N. flikki, M.L.G. vlicke "piece of flesh." Not connected to flesh. A flitch was presented every year at Dunmow, in Essex, to any married couple who could prove they had lived together without quarreling for a year and a day, a custom mentioned as far back as mid-14c.