Why did Abraham transmit 'names of impurity' to the sons of the concubines if sorcery and divination are forbidden even to Noahides?

This source-based Torah study examines: Why did Abraham transmit 'names of impurity' to the sons of the concubines if sorcery and divination are forbidden even to Noahides? It follows the canonical Hebrew discussion and the classical sources cited there, preserving the distinctions and review status of the original. This localized layer is for study and discovery only; it is not practical halakhic, legal, medical, safety or pastoral advice.