Wrist (broke mine almost exactly 10 years ago on 7 December. Morriston effed-up the first op, had to go private in Llandough to have it sorted)
[ Many words starting with “wr” have to do with twisting, though not all. ... A prehistoric Indo-European root reconstructed as wer (meaning to turn or bend) is the ancestor of our words “wreath,” “writhe,” “wring,” “wrangle,” “wrench,” “wrinkle,” “wrist,” “wrest,” “wrestle,” “wrap,” and scores of others.]