The Role of Qiyas (Analogy) in ？ayr Munsarif (Diptosis) Nouns

The analogy was used as an important way to form Arabic grammar because the grammar scholars used it effectively in discovering rules of language. They identified general rules and procedures for language, depending on the similarities among linguistic data. Although the analogy was not used as a primary method to explain all grammatical issues, the scholars of nahiv (grammar) explained completely the conditions in which the nouns used as ？ayr mun？arif (diptosis) using this way. There is no disagreement between the Basra and Kūfe language schools in this respect. Both have differentiated some names from others considering the similarity of some names to a verb in some ways. This study is important in terms of showing that analogy, as a source and method, is an indispensable method and source of explaining grammatical methods