o·ver·write 
(ō′vər-rīt)
(ō′vər-rīt)v. o·ver·wrote (-rōt), o·ver·writ·ten (-rĭtn), o·ver·writ·ing, o·ver·writes
v.tr.
1. To cover (something) with writing.
2. To write about in an artificial or an excessively elaborate, wordy style.
3. Computers
a. To destroy or lose (old data) by recording new data over it: accidentally overwrote an important document.
b. To record (new data) on top of already stored data, thus destroying the old data: overwrote an updated document on top of an earlier draft.
v.intr.
To write artificial, excessively elaborate, or wordy prose.