Derivative

Coming from another; taken from something preceding; secondary; that which has not its origin in itself, but owes its existence to something foregoing.

— Derivative conveyances. Conveyances which presuppose some other conveyance precedent, and only serve to enlarge, confirm, alter, restiain. restore, or transfer the interest granted by such original conveyance. They are releases, confirmations, surrenders, assignments, and defeasances. 2 Bl. Comm. 324.