ὀπισθόπους

English (LSJ)

ὁ, ἡ, πουν, τό, gen. ποδος,

   A walking behind, following, attendant, προσπόλων ὀπισθόπους κῶμος E. Hipp.54, cf. 1179, A.Ch.713.    II = ὑποστρέψας, one who has returned, Hsch.