Nouns:
* Endowment: A gift or donation, especially of money, to a person or institution.
* Endower: A person who endows something.
Verbs:
* Endowed: Past tense of "endow."
* Endowing: Present participle of "endow."
* Endowed (adjective): Possessing a quality or characteristic, often a desirable one. Example: "She was endowed with great intelligence."
Other related words:
* Endowments: Plural of "endowment."
* Endowers: Plural of "endower."
Note: While the base word is "endow," there are no common words directly formed with a prefix or suffix attached to it.