English
primidone
Blend of p(y)rimid(ine) + d(i)one.
A blend of pyrimidine + dione
German Pyrimidin
English pyrimidine
Today it means
noun An anticonvulsant drug chemically related (and partially metabolized) to phenobarbital, used in the treatment of epilepsy and essential (idiopathic) tremor.
Language periods are conventional ranges, not dates for this word.
Etymograph / primidone