[f. CORBEL sb.] To corbel out or off: a. trans. to support in a projecting position on or as on corbels; b. intr. to project on or as on corbels.

1

1859.  Sat. Rev., VII. 681/1. A very wide … chancel-arch, of which the shafts are corbelled off.

2

1861.  Beresf. Hope, Eng. Cathedr. 19th C., 206. [The organ] boldly corbelling out from the choir triforium on the north side.

3

1874.  Micklethwaite, Mod. Par. Churches, 66. [The organ] corbeled out over head.

4