obolus
nounSame as
A small silver coin current in the middle ages in Hungary, Poland, Bohemia, etc.
noun[capitalized] [NL.] In zoology, a genus of brachiopods of the family Lingulidæ, from the Silurian, having orbicular valves.
nounA small silver coin of Athens, the sixth part of a drachma, about three cents in value.
nounAn ancient weight, the sixth part of a drachm.
nounA
a Greek unit of weight equal to one tenth of a gram