Quasi-endowments
A quasi-endowment, or fund functioning as an endowment, are funds merely earmarked by an organization’s governing board, rather than restricted by a donor or other outside agency, to be invested to provide income for a long but unspecified period, and the governing board has the right to decide at any time to expend the principal of such funds. Separately from the endowment versus quasi-endowment distinction, there's another 2-way categorization of restricted and unrestricted, which focuses on the use of the funds. As an example, a quasi-endowment might be restricted by the donor to supporting the tennis team; the use is restricted to one purpose, but the governing board could "invade principal" to support the tennis team.
Read more about this topic: Financial Endowment