·noun The top member of a pillar, pier, wall, ·etc., upon which the weight of an arch rests.
II. Impost ·noun That which is imposed or levied; a tax, tribute, or duty; especially, a duty or tax laid by goverment on goods imported into a country.
The tax received for such foreign merchandises as are brought into any haven within a prince's domin...
The Sailor's Word-Book
Usurers who attend the gaming-tables, and lend money at great premiums. ...
Dictionary of The Vulgar Tongue by Francis Grose