Word Study
tetradrachma
CIDE DICTIONARY
tetradrachma, n. [NL. tetradrachma, fr. Gr. tetra`drachmon; te`tra- (see Tetra-) + drachmh` drachm, drachma.].
A silver coin among the ancient Greeks, of the value of four drachms.
"The Attic tetradrachm was equal to 3s. 3d. sterling, or about 76 cents." [1913 Webster]
For further exploring for "tetradrachma" in Webster Dictionary Online