to respond to changes to ‘predecessor’ UK taxes (that is, stamp duty land tax or landfill tax) which affects or may affect the amount paid into the Welsh Consolidated Fund, and
i ymateb i newidiadau a wneir i drethi ‘rhagflaenol’ y DU (hynny yw, treth dir y dreth stamp neu'r dreth dirlenwi) sy'n effeithio, neu a allai effeithio, ar y swm a delir i Gronfa Gyfunol Cymru, ac