Douglas Harper's Etymology Dictionary
Usage examples of "re-assert".
Gradually the fragments caught together re-united, heaving, rocking, dancing, falling back as in panic, but working their way home again persistently, making semblance of fleeing away when they had advanced, but always flickering nearer, a little closer to the mark, the cluster growing mysteriously larger and brighter, as gleam after gleam fell in with the whole, until a ragged rose, a distorted, frayed moon was shaking upon the waters again, re-asserted, renewed, trying to recover from its convulsion, to get over the disfigurement and the agitation, to be whole and composed, at peace.
Rapidly Warren eased off the attractive field that had held the fleet helpless, as they one by one fluttered a moment in the re-asserted gravity of the planet, and righted, he released the magnetic field entirely, and the last of the gravity field.