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.
Ec'Ru (Eck'-Ru). [French ecru, "raw" or "unbleached" when applied to linen, silk or other textile fabrics]. Having the color of unbleached silk or linen, hence by extension having any similar shade or neutral color, as the color of hemp or hempen cord.
 
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