A small silver coin and money of account of Germany, worth about two cents. It was discontinued in the new monetary system of the empire and not subsequeently used. [1913 Webster]
groschen, n.
1 an Austrian coin and monetary unit, one hundredth of a schilling.
2 colloq. a German 10-pfennig piece.
3 hist. a small German silver coin.
Etymology
G f. MHG gros, grosse f. med.L (denarius) grossus thick (penny): cf. GROAT