Note 047

In the Latin writers, at least of the silver age, the title of Potestas was transferred from the office to the magistrate:
Hujus qui trahitur praetextam sumere mavis;
An Fidenarum Gabiorumque esse Potestas.
Juvenal. Satir. x. 99.

The History Of The Decline And Fall Of The Roman Empire Fall In The EastChapter 69