In the Qur'an, the word عرب ʿarab does not appear, only the nisba adjective, عربيّ ʿarabiyy-un : The Qur'an is referring to itself as عربيّ ʿarabiyy-un "Arabic" and مبين mubīn-un "clear". The two qualities are connected, for example in ayat 43.2-3, "By the clear Book: We have made it an Arabic recitation in order that you may understand", and the Qur'an came to be regarded as the prime example of العربية al-ʿarabiyyatu, the language of the Arabs. The term ʾiʿrāb is from the same root, referring to a particularly clear and correct mode of speech.