Financial endowment

A financial endowment is a donation of money or property to a nonprofit organization for the ongoing support of that organization. Usually the endowment is structured so that the principal amount is kept intact while the investment income is available for use, or part of the principal is released each year, which allows for their donation to have an impact over a longer period than if it were spent all at once. An endowment may come with stipulations regarding its usage.

The total value of an institution's investments is often referred to as the institution's endowment and is typically organized as a public charity, private foundation, or trust. Among the institutions that commonly manage endowments are academic institutions (e.g., colleges, universities, and private schools), cultural institutions (e.g., museums, libraries, and theaters), service organizations (e.g., hospitals, retirement homes, the Red Cross, the SPCA), and religious organizations (e.g., churches, synagogues, mosques).

The earliest "endowed chairs" were those established by the Roman emperor and Stoic philosopher Marcus Aurelius in Athens in AD 176. Aurelius created one endowed chair for each of the major schools of philosophy: Platonism, Aristotelianism, Stoicism, and Epicureanism. Later, similar endowments were set up in some other major cities of the Empire.

...
Wikipedia