The Collaborative International Dictionary of English v.0.48:
Sweat \Sweat\, v. t.
1. To cause to excrete moisture from the skin; to cause to
perspire; as, his physicians attempted to sweat him by
most powerful sudorifics.
2. To emit or suffer to flow from the pores; to exude.
It made her not a drop for sweat. --Chaucer.
With exercise she sweat ill humors out. --Dryden.
3. To unite by heating, after the application of soldier.
4. To get something advantageous, as money, property, or
labor from (any one), by exaction or oppression; as, to
sweat a spendthrift; to sweat laborers. [Colloq.]
To sweat coin, to remove a portion of a piece of coin, as
by shaking it with others in a bag, so that the friction
wears off a small quantity of the metal.
The only use of it [money] which is interdicted is
to put it in circulation again after having
diminished its weight by "sweating", or otherwise,
because the quantity of metal contains is no longer
consistent with its impression. --R. Cobden.