Definition of lever:
(v) :
rather. —Chaucer; to move with a
lever
"for lever had I die than see his deadly face. —Spenser"
(n) :
a rigid piece which is capable of turning about one point, or axis (the fulcrum), and in which are two or more other points where forces are applied; — a bar, as a capstan bar, applied to a rotatory piece to turn it