Lewis & Short

antĕ-grĕdĭor, gressus, 3, v. dep. [-gradior], to go before, to precede (perh. only in Cic.): stella Veneris cum antegreditur solem, Cic. N. D. 2, 20, 53: quicquid est quod deceat, id tum adparet, cum antegressa est honestas, id. Off. 1, 27, 94; id. Fat. 10; id. Div. 1, 14.