[ad. F. suint, earlier † suing, f. suer to sweat, with an indeterminate suffix.] The natural greasy substance in the wool of sheep, consisting of fatty matter combined with potash salts: called also yolk.
1791. Hamilton, Berthollet’s Dyeing, I. I. II. i. 125. Wool is naturally covered with a kind of grease called suint.
1874. Crookes, Dyeing & Calico-Printing, 84.
1875. Knight, Dict. Mech., 1549/2. In cleansing wool from the suint.
1885. F. H. Bowman, Struct. Wool Fibre, 179. Formerly this suint was looked upon as a kind of soap, because it was soluble in water.
