rĕgĭōnātim, adv. [regio],
by districts or wards : regionatim commerciis interruptis, Liv. 45, 30, 1; 40, 51 fin. : (edidit) ludos regionatim Urbe totā, Suet. Caes. 39.
regiōnātim adv. regio, by districts, by wards : tribūs descripserunt, L. ...
An Elementary Latin Dictionary