matĕris — Lewis & Short
matĕris or matăris (madăris), is, and matăra, ae, f.Celtic,
nonnulli inter carros rotasque mataras ac tragulas subiciebant nostrosque vulnerabant,Caes. B. G. 1, 26, 3:
humero matari trajecto,Liv. 7, 24, 3:
materis Transalpina,Auct. Her. 4, 32, 43: Galli materibus configunt, Sisenn. ap. Non. 556, 8; id. ib. 9.