Dear Bernard, I practice as a GP on the North East Coast of England.Over the years the very elderly have referred to their hip as “my lisk” This always sounded Viking to me. It appears that “lyske ” is Norwegian for groin . I was telling an old lady that her husband calls his arthritic hip his Lyske because he is almost certainly of Viking origin.She looked utterly unimpressed and said “that explains his bloody temper” . Perhaps the heirs of Ragnar are alive and well in East Cleveland . Thought you and your readers may find this as interesting as I do .Thanks for years of reading pleasure. Dr. Neil Brownlee