can·ti·le·ver 
(kăntl-ē′vər, -ĕv′ər)
(kăntl-ē′vər, -ĕv′ər)n.
1. A projecting structure, such as a beam, that is supported at one end and carries a load at the other end or along its length.
2. A member, such as a beam, that projects beyond a fulcrum and is supported by a balancing member or a downward force behind the fulcrum.
3. A bracket or block supporting a balcony or cornice.
v. can·ti·le·vered, can·ti·le·ver·ing, can·ti·le·vers
v.tr.
To construct as or in the manner of a cantilever.
v.intr.
To extend outward as or in the manner of a cantilever.
[Perhaps CANT1 + LEVER.]