Is agr a greek or latin root?

"Agr" is not a Greek or Latin root. It's a shortened form of the Latin word "ager," which means "field."

Here are some examples of words derived from "ager":

* Agriculture: The practice of cultivating land for crops and livestock.

* Agronomy: The science of soil management and crop production.

* Agrarian: Relating to land, especially farmland.

While "agr" itself isn't a recognized root, it's a common abbreviation used in various scientific and technical contexts to refer to the concept of land or agriculture.