Mae felly'n siom mawr bod Llywodraeth y DU wedi gwrthod gwrando, ac yn ymddangos yn benderfynol o bryfocio gwrthdaro cyfansoddiadol, nad oes ei angen o gwbl.
It is therefore a source of huge regret that the UK government has failed to listen and seems determined to provoke a constitutional conflict which we do not need.