This section is from the "A Complete Dictionary of Dry Goods" book, by George S. Cole. Also available from Amazon: A complete dictionary of dry goods and history of silk, cotton, linen, wool and other fibrous substances,: Including a full explanation of the modern processes ... together with various useful tables.
Prunella. A kind of lasting of which clergymen's gowns were once made, but now only used for the uppers of women's cloth shoes. The name is supposed to have been derived from its former color, that of prunelle, French for plum.