liberalize
verb [ T ]
(Uk also liberalise) uk/ˈlɪbərəlaɪz/ /-rəl-/ us/-ɚ-/to allow more freedom in laws, systems, or opinions:
They will work with a view to further liberalize the investment regime.
liberalizer
noun [ C ] (UK also liberaliser)
He has presented himself as a liberaliser.