The work on the idiomatic and conceptual side is work in the origin of the language, and this is what Mr. Ahmed wanted in the beginning of his writings. He set a goal and achieved it in his studies, (The Lexical Terminology and Its Development) and (The Glossary of Old Arab Criticism), and these two sources are the basis of every term researcher He could not leave it because of its importance, as he was able to employ more than a thousand studies in the study historically from the oldest critic or scientist to another who talked about it until its stability, as well as other books, was able to raise this issue and make it the focus of attention of researchers, to realize the size of the problem in the term If it was misused or ways to put it before.