Love, being an extremely exacting usurer (a sense of exorbitant profit, spiritually, by an exchange of hearts, being at the bottom of pure passions, as that of exorbitant profit, bodily or materially, is at the bottom of those of lower atmosphere), every morning Oak’s feelings were as sensitive as the money-market in calculations upon his chances.
There are no more uses of "usury" in the book.
Show samples from other sources
This is a kind of usury, banker, that I do not understand.
Alexandre Dumas -- The Count of Monte Cristo
Of course, any industrial profit above four per cent is considered usury nowadays.