Gadroon

From French godron.

Full definition of gadroon

(plural gadroons)

Any of a series of raised decorative curves used as adornments on the necks of vases, silverware, etc.

1960, P. G. Wodehouse, Jeeves in the Offing, Owing possibly to some flaw in his mental make-up, Uncle Tom has been collecting old silver since I was so high .... I knew all about that collection of his, not only because I had had to listen to him for hours on the subject of sconces, foliation, ribbon wreaths in high relief and gadroon borders, but because I had what you might call a personal interest in it, once having stolen an eighteenth-century cow-creamer for him.