περίδρομος

Etymology
From a suppletive root of ; see, for example,.

Adjective

 * 1) running round, encircling, round, circular
 * 2) wandering, going about, roaming
 * 3)  that can be run round; hence, standing apart, detached
 * 4) surrounded

Noun

 * 1) that which surrounds, edge, rim
 * 2) orbit, lap
 * 3)  circuit-judges