The Dictionary of the Rigveda by Hermann Grassmann is the only standard Rigveda [RV]dictionary today.¹ The 5th reprint followed in 1976, and there exists a 6th edition, revised and supplemented byM. Kozianka [H. Grassmann 1996]. After its appearance, research has developed radically in the fields of philology (understanding of vocabu- lary and meaning) and grammar. The progress achieved in Indo-European linguistics in the twentieth century has been remarkable. The study of morphology including the functional analysis of grammatical forms has developed towards totally new dimensions.