verderer

A man serving as an official in charge of the royal forests of medieval England.

In English forest law, a judicial officer in the royal forests, whose peculiar charge was to take care of the vert—that is, the trees and underwood of the forest—and to keep the assizes, as well as to view, receive, and enroll attachments and presentments of all manner of trespasses.

An officer who has the charge of the king’s forest, to preserve the vert and venison, keep the assizes, view, receive, and enroll attachments and presentments of all manner of trespasses.