Definition of overwritten:
(v) :
(transitive, computing) To destroy (older) data by recording new data over it.
(n) :
(computing) The operation of destroying older data by recording new data over it.
(v) :
(transitive) To cover in writing; to write over the top of.
(v) :
(ambitransitive) To write too much.
(v) :
(ambitransitive) To write in an unnecessarily complicated or florid way; to produce purple prose.