Which preposition to use with meliorated

in Occurrences 2%

The stupendous tyranny of the government, though not meliorated in principle, is relaxed in practice; and this vote, far from operating in favour of the culprits, has only served to excite the public indignation, and to render them more odious.

with Occurrences 1%

Our pious ancestors, as Powis calls them, much of whose piety, by the way, was any thing but meliorated with spiritual humility or Christian charity, were such ignoramuses as to set up crosses in every door they built, even while they veiled their eyes in holy horror whenever the sacred symbol was seen in a church.

Which preposition to use with  meliorated