Lewis Short
(adjective) : rūrālis, e, rus
* Of or belonging to the country, rural, rustic (post-class.): negotia,Amm. 30, 2, 10: opus (Hesiodi),Macr. S. 5, 2: Apollo,Nemes. Ecl. 1, 65.—Adv.: rūrālĭter, rurally, Cassiod. Var. 3, 51.
Charlton T. Lewis, Charles Short, A Latin Dictionary