الخلاصة:
"The study entitled “Articulation Defects by Eljahid through ‘El bayan wa eltabyan’ ” aimed at investigating his corpus: “stating letters that contain lisp and what comes to my mind”, which was in the first part of his book. The study concentrated on tackling the linguistic variation that affects speech, otherwise, articulation defects.
The study aimed at finding out a link with Eljahid’s Arabic heritage that was presented by many recent researchers. Hence, this purpose had made this study of a capital importance.
The study was built on preliminary and three chapters. In the preliminary chapter, the concept articulation defects had been treated and presented to differentiate it from different but related concept used among ancient and recent Arabic and foreigner linguists.
The first chapter was entitled “In the History of Defects of Articulation between Arabs and Foreigners Heritage”. This chapter aimed at presenting Eljahid’s views and evaluating them subjectively by situating them in the historical evolution.
The second chapter was entitled “In the Linguistic Phonology”. It contained three subchapters: phonology, articulatory phonetics and acoustic phonetics. Articulation defects were considered as only deviations that cover splitting sounds when pronouncing them.
The last chapter entitled “Articulation Defects in Speech” was built on two subchapters: “articulation defects under speech theory” and “articulation defects through Elbayan wa eltabyan”
According to the nature of the study chapters, I used the historical approach in the first chapter and the analytical descriptive approach in the last two chapters.
At the end the study concluded with some results, most of which are:
-Eljahid studied articulation defects from different angles: definition, classification and treatment. Hence, his results were similar to those of recent researchers.
-Eljahid has studied some articulation defects through social measurement based on common as well as elite people in the belief that language had layers the same as society.