Corbel
In architecture a corbel or console is a structural piece of stone, wood or metal sticking out from a wall to carry a superincumbent weight.[1] It is a type of bracket.[1] A corbel is a solid piece of material in the wall. A console, by comparison, is a piece applied to the structure. A piece of structural wood projecting in the same way was called a "tassel" or a "bragger" in the UK.[2] The technique of corbelling, where rows of corbels support a projecting wall or parapet, has been used since Neolithic, or New Stone Age, times.
The word "corbel" comes from Old French and derives from the Latin corbellus, a diminutive of corvus (a raven) which refers to the beak-like appearance.[2][3] Similarly, the French refer to a bracket-corbel, usually a load-bearing internal feature, as a corbeau (a crow).
Corbel Media
Corbels quarried for London Bridge but unused; Swell Tor quarry, Dartmoor
Corbelled arch at the Royal Palace of Ugarit, 2nd millennium BC
Corbelling to resemble machicolations on an 18th-century folly, Broadway Tower, England