This research aims to investigate the influence and effect between grammar and jurisprudence, and to highlight the scientific value each contributed to the other. The study highlights aspects of the relation between the aforementioned that need more research especially on the process of influence and effect between them with respect to the concept, term, and composition. Furthermore, this research shows the importance of scientific contribution that was provided by purist grammarians and purist jurists in modern linguistic studies. The research also looks at the shortcomings in the study of language, and the role of the fundamentalists in dealing with this deficiency by expanding research in semiotics and pragmatism.