Which preposition to use with ravenings

of Occurrences 7%

And this is Mr. Clay's peace-offering, to appease the lust of power and the ravenings of state encroachment!

for Occurrences 1%

Not counting Sundays and Bank holidays, this will give us rather more than 75,000 newly created souls a yearcannibal souls, ravening for the brains of men and women similar to the brains that gave them birth, and each able to devour as many brains as it can catch.

within Occurrences 1%

When she had confirmed him by an oath, then she told him all this business of her lordwhy he went, and what he became, and of his ravening within the wood.

Which preposition to use with  ravenings