Linsey-woolsey

Linsey-woolsey (less often, woolsey-linsey or in Scottish English, wincey) is a coarse twill or plain-woven fabric woven with a linen warp and a woollen weft. Similar fabrics woven with a cotton warp and woollen weft in Colonial America were also called linsey-woolsey or wincey. The name derives from a combination of lin (an archaic word for flax, whence "linen") and wool. This textile has been known since ancient times; known as Shatnez in Hebrew, the Torah and hence Jewish law explicitly forbid wearing it.