Lewis Short
(adjective) : rĕgĭōnālis, e, regio
* Of or belonging to a province or region: concilium, provincial (opp. plenarium), Aug. Bapt. contr. Donat. 7, 53. — Adv.: rĕgĭōnālĭ-ter, by provinces or regions, = regionatim, App. de Mundo, 23, p. 68, 2; Cael. Aur. Acut. 2, 29, 157.
Charlton T. Lewis, Charles Short, A Latin Dictionary