[IDEM libro septimo regularum. ] §50.16.102.pr'Derogatur' legi aut 'abrogatur'.
[THE SAME, Rules, book 7.] There is 'derogation' from a law or 'abrogation'.
derogatur legi, cum pars detrahitur: abrogatur legi, cum prorsus tollitur.
There is derogation from a law when a part is removed; there is abrogation of a law when it is completely abolished.