cantilever -
A beam anchored at one end and projecting into space, such as a long bracket projecting from a wall to support a balcony.
Verb
cantilever -
To project in the manner of a cantilever, or to project something by means of a cantilever.
Wikipedia
A cantilever is a beam supported on only one end. The beam carries the load to the support where it is resisted by moment and shear stress. Cantilever construction allows for overhanging structures without external bracing.