From LoveToKnow 1911
SUET (M. Eng. sewet, a diminutive of O. Fr. seu, suis, mod. suif, lard, from Lat. sebum, or sevum, tallow, grease, probably allied to sago, soap), the hard flaked white fat lying round the kidneys of the sheep or ox; that of the pig forms lard. Beefsuet is especially used in cookery.
