The term strange in grammar according to Ibn Hisham Al-Ansari (D. 761 A.H.) - a balanced analytical study

This study is concerned with the term of the oddness in grammar that was called by Ibn Husham Al-Ansary on some of the grammatical issues or some speech modes that differed from the rules of grammar and its regulations and compared it with the rules set out by the other grammarians on the same issues if they are found such as the infrequent, the irregular, the rare and the weak. The importance of the topic is concerned with identifying the term of the oddness in grammar first, and the accuracy of Ibn Hushams use of it secondly. Besides his proving a new term in the grammar after being of common use in various sciences.