In the late Latin world, a crucial role in using etymology and in providing us information about etymologizing (and the general debate around this topic) is played by grammarians, commentators, teachers, mythographers, encyclopaedists, Neoplatonists, Christian apologists and writers, who developed these issues and whose influence on later approaches was enormous. Focusing on the etymology of Saturnus, the paper deals with the scope and purposes of etymologizing in late Latin authors.