de gras

Etymology
From +  ("from fat").

Noun

 * 1) Purified wool fat (lanolin).
 * 2) * 1909, Herman Stabler and Gilbert H. Pratt, The Purification of some Textile and other Factory Wastes, (US GPO, 1909) p. 18
 * The oil, when cool, solidifies, and it is sold under the name of “de gras”, or Yorkshire grease.
 * 1) * 1982,,  (OSU Press, 1982) (Berkley edition, p. 1255, Chapter "1913")
 * ... they could busy themselves greasing the mill machinery to preserve it from muddy water and any consequent rusting, use the barrels of de gras on hand for lubricating hemp. The mill would stink like a sheepfold, but nothing was more water-resistant than a thick layer of wool fat.
 * ... they could busy themselves greasing the mill machinery to preserve it from muddy water and any consequent rusting, use the barrels of de gras on hand for lubricating hemp. The mill would stink like a sheepfold, but nothing was more water-resistant than a thick layer of wool fat.