Directly using the root:
* Renounce: To give up or reject something formally.
* Pronounce: To speak words clearly and distinctly.
* Announce: To make something known publicly.
Related words:
* Denounce: To publicly criticize or condemn someone or something.
* Enounce: To state clearly and precisely.
* Noun: A word that names a person, place, or thing. (Although it's not directly derived from "nounce," it's related to the Latin root "nomen," meaning "name")
Let me know if you'd like to explore other related words!