corbelling

noun

1. a piece of stone, wood, or metal, often in the form of a bracket, projecting from the side of a wall and serving to support a cornice, the spring of an arch, etc.
2. a short timber placed lengthwise under a beam or girder

Etymology: OFr, dim. of corb < L corvus, raven: so called from its beaked shape

transitive verb corbeled -·beled or corbelled -·belled, corbeling -·bel·ing or corbelling -·bel·ling