tē̆trădrachmum and tē̆trach-mum, i, n., = τετράδραχμον,
a silver coin of four drachmas among the Greeks, Cass. ap. Cic. Fam. 12, 13, 4.—Form tetrachmum, Liv. 34, 52, 6; 37, 58, 4; 37, 46, 3; 39, 7, 1 Weissenb.