Which preposition to use with rucks

of Occurrences 13%

On the edge of the woods a multitude of horses were picketed, and there were booths that sold food and drink, merry-go-rounds and fiddlers, and an immense concourse of every condition of folk, black slaves and water-side Indians, squatters from the woods, farmers from all the valleys, and the scum and ruck of the plantations.

in Occurrences 1%

He arranged my coat so that it should look as if it had been made to fit somebody else, and disposed my arms in such a way as to give the sleeves the appearance of trouser legs with rucks in them.

Which preposition to use with  rucks