Wiktionary
preprepare
vb. To prepare in advance.
Usage examples of "preprepare".
We transfer a whole bunch of credits to our preprepared rebel accounts, and then erase and scramble everything else.
They were all gone in a matter of a few minutes, blowing preprepared charges to seal off the holes to their tunnels, leaving the Faithful, the mercenaries, the Jesuit commandos and Cardinal Kassar standing in a daze, looking around and trying to figure out what the hell had just hit them.