noun / verb
fund
FUND/fʌnd/
Money set aside or provided for a particular purpose.
The school keeps a special fund for new library books.

Etymology
The image is a foundation: a merchant's basic stock or capital was the base supporting the business. From this developed the sense of money available for a particular purpose.
In context
Next, build a graduating emergency fund parked in a high yield savings account
More examples
- Local businesses fund the free summer concerts.
- We need more funds to repair the roof.
- The grant funded a year of medical research.
Forms
fund · funds · funded · funding
funding noun — Money provided for a particular purpose.
funder noun — A person or organization that provides money.