Patronage is the support, encouragement, privilege, or financial aid that an organization or individual bestows on another. In the history of art, arts patronage refers to the support that princes, popes, and other wealthy and influential people have provided to artists such as musicians, painters, and sculptors. It can also refer to the right of bestowing offices or church benefices, the business given to a store by a regular customer, and the guardianship of saints. The word patron derives from the Latin patronus ('patron'), one who gives benefits to his clients.

Usury is the practice of making loans that are seen as unfairly enriching the lender. The term may be used in a moral sense—condemning taking advantage of others' misfortunes—or in a legal sense, where an interest rate is charged in excess of the maximum rate that is allowed by law. A loan may be considered usurious because of excessive or abusive interest rates or other factors defined by the laws of a state. Someone who practices usury can be called a usurer, but in modern colloquial English may be called a loan shark.