"Rooting" and "originality" of the vocabularies are considered as two important axes for the correct equating in the translation and interpretation process of Holy Qur'an. In this regard, this study tries to apply them in the Quranic "Saleya" root. This root has been used 25 times in the Quran in various structures and different meanings are given for it, among which "entering" is most often seen. Also, due to the similarity of this root and the "Salava" root, it has usually not been paid much attention to it, and even some have not realized the distinction between these two roots. According to the dark meaning of this root and its uses in the Quran, this research seeks to provide a clearer meaning of this root than what had come in most Persian translations of the Holy Quran and some of the interpretations by relying on the first hand dictionaries and some of the early interpretations, as well as the dictionaries of the Sami and Afro-Asian languages in the field of Semantic studies with a descriptive-analytical method and referring to academic resources. According to the conducted studies, this root originally meant "necessity" and "communication", and then used in its other meanings such as: "to receive heat of fire", "to be turned" and "to enter".