Here are some examples of English words derived from the Latin root prov:
* Prove: This is the most direct translation of the root.
* Proverb: A saying that expresses a common truth or belief.
* Provision: The act of supplying or providing something.
* Province: A region or territory, originally a Roman territory.
* Approve: To formally agree to something.
* Disprove: To show that something is false.
* Improvise: To create something without prior planning or preparation.
* Reprove: To criticize someone for doing something wrong.
This is not an exhaustive list, but it gives you an idea of how the root prov is used in English.