Verb
To cancel, as what is written; to erase.
Source: Webster's dictionaryWe can destroy what we have written, but we cannot unwrite it. Anthony Burgess
But there are forces that don't let you turn back and undo things, because to do so would be to deny what is already in motion, to unwrite and erase passages, to shorten the arc of a story you don't own. Salvador Plascencia