Lucet, as verb, is a method of making braided cording or lacing that dates from the Viking era. Lucet, as noun, is the name of the little 2 tined tool used to make the cord, which is strong, square, and only slightly elastic. There are many different techniques, each of which will produce a different kind of cord, but the basic process is the same. Briefly, yarn is worked in a figure 8 pattern, lifted over the tine, then turning the lucet. As the cord grows in length, it can be wound round the handle. Sometimes referred to as a chain fork or hay fork, the lucet was replaced when affordable commercial cording became easily available during the industrial revolution.
I’m not certain whether the word is pronounced “lusette” or “lusay”, and would appreciate your comments if you know for sure.