Tafʿīl: Naming and the Final Weak Radical
نوع / بابPastPresentParticipleCommand / lāmProhibition
التسمية — معروفسَمَّىيُسَمِّيمُسَمٍّسَمِّلَا تُسَمِّ
التسمية — مجہولسُمِّيَيُسَمَّىمُسَمًّىلِيُسَمَّلَا تُسَمَّ
سَمَّى → يُسَمِّي → سَمِّ = named → names → name! Compare مُسَمٍّ (one who names) and مُسَمًّى (one who is named).