rē̆trō-cēdo (or separate, rē̆tro cēdo), ĕre, v. n.,
to go back , retire , recede , Liv. 8, 8, 9 (Weissenb. retro cedentes); Curt. 3, 8, 17; 7, 4, 4.
retrō-cēdō or retrō cēdō —, —, ere, to go back, retire, recede: eos retro cedentes recipiebant, L.:...
An Elementary Latin Dictionary