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