Linenfold is a simple style of relief carving used to decorate wood panelling with a design "imitating window tracery", "imitating folded linen" or "stiffly imitating folded material". Originally from Flanders, the style became widespread across Northern Europe in the 14th to 16th centuries. The name was applied to the decorative style by antiquarian connoisseurs in the early 19th century; the contemporary name was apparently lignum undulatum, Nathaniel Lloyd pointed out.