derogo

dē-rogō āvī, ātus, āre.—In legislation,

to repeal in part, restrict, modify: neque derogari ex hac (lege) aliquid licet: de lege aliquid derogare. —In gen., to take away, detract, diminish, impair, withhold: de magnificentiā quiddam: de testium fide: si quid ex hac (aequitate): fidem alicui: certam derogat vetustas fidem, L.