Linguistics received from early ages a ghiari attention to the Arabic language. And those keen on preserving and safety. And those aspiring to devise the contents of its benefits and the minutes of its meanings. So they struggled for the sake of that, the most sincere and the most wonderful of jihad, and they performed the best and the best of calamities, so their efforts paid off, and its fruits blossomed, and their harvest became close. Among these studies was the bilingual and tripartite phenomenon that was concerned with the late and modern linguists. As it became clear to them that there were common words in two letters and in a general meaning by combining them together, and linking each other, so they were very careful and its goal to stand at the origin of these words, and does this participation in a number of letters, and in the general general meaning, a close relationship in its inception? Before I explain this matter in detail, I must point out that it is one of the most accurate linguistic investigations. And the most difficult of them, and the most distant one in search of the principle of the Arabic language and its stages, because the Arabic we inherited was not an accurate knowledge of it that goes far beyond Islam in terms of time. And subject to many assumptions and theories at other times. And the issue gets more complicated whenever opinions are confused, and viewpoints differ, and it becomes. A historical phenomenon, such as a binary and tripartite phenomenon, one of the phenomena that the researcher cannot make a final judgment about its origin. And he assured