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antĕcessor, ōris, m. [antecedo], he that goes before; hence, 
- I.  In milit. lang., antecessores, the forerunners of the army, the advanced guard (cf. antecursor): speculatores et antecessores, Auct. B. Afr. 12: agminis antecessores, * Suet. Vit. 17.
- II.  In the jurists, 
- A.  Teachers or professors of law, Cod. Just. 1, 17, 2.
- B.  A predecessor in office (opp. successor): ad antecessores meos Apostolos, Vulg. Gal. 1, 17; Dig. 5, 1, 55; 27, 9, 9.
- III.  Tert. thus designates the Holy   Ghost, Tert. Virg. Vel. 1 fin.; and also the Apostles, id. adv. Marc. 1, 20; 5, 3.