As early as the Hellenistic period but more widely in the imperial age throughout the Roman Empire, we observe consecrations and dedications both to deities known by other theonyms and to a power in its own right, named Panthe(i)os in Greek and Pantheus in Latin. Faced with this formulation, scholars have emphasised the ‘quantitative’ force of the Greek pas, pasa, pan (translated as ‘total, universal’), interpreting this god as reflecting a process of gradual translation from the multitude of gods of Greco-Roman paganism to a ‘total’ and thus ‘universal’ god, which would thereby pave the way for Christian monotheism. The analysis of this term and its contextual applications shows that Panthe(i)os/Pantheus does not portray an abstractly ‘total’ and therefore ‘unique’ god, but a ‘super-god’ with exceptional powers called upon for the sake of pragmatic efficiency, on a religious horizon still fully perceived as plural. By choosing this name, the worshippers thus displayed their privileged relationship with the deity from whom they expected protection in a particularly effective manner.