To feather
Examples
We must especially beware of that small group of selfish men who would clip the wings of the American Eagle in order to feather their own nests.
To ruminate upon evils, to make critical notes upon injuries, and be too acute in their apprehensions, is to add unto our own tortures, to feather the arrows of our enemies, to lash ourselves with the scorpions of our foes, and to resolve to sleep no more.
A bird will always use another birds' feathers to feather its own nest.