horsum — Lewis & Short
horsum, adv.contr. from hoc = huc and vorsum,
I hitherwards, hither, this way (ante-class.):
pergunt,Ter. Hec. 3, 4, 36:
horsum se capessit,Plaut. Rud. 1, 2, 83; id. Mil. 2, 3, 33: te adiget horsum insomnia Ter. Eun. 2, 1, 13.