Arabized words in Sibveih's book

The word ‘mo’rab’, which means Arabized non-Arabic words, refers to the non-Arabic words, often Persian words, that have entered Arabic language. The relations between Persian and Arabic languages before and after Islam paved the way for the entry of a number of Persian words into Arabic language. Sibveih has precisely studied these words and explained the changes in their pronunciation. The later literati followed his method because of its precision.