Arcane weaving terms

I love to play Scrabble, a game that flexes both my imagination and my vocabulary.  Terminology from specialized fields can be problematic if an appropriate dictionary is not used.  I often play what my son calls "arcane weaving terms" such as weft, sett, heddle, batten, pirn, tromp, and thrum.  He is surprised to find them in a standard dictionary.  I assure him that these are in current use, at the same time feeling a connection to my weaving ancestors.  Thrums are what remain on the loom after a project is completed and cut off.  When they, too, are removed, they are commonly referred to as loom waste. In this blog they are the stuff of memories.