Amend has basically the same meaning in common usage as it does in the legal arena. When a legal document is amended, it is edited, corrected or changed in some way. When a legal document is amended during a legal proceeding, it must be done in accordance with court rules and filed with the court. If procedures are followed and there is no undue influence to the other parties, the amended document takes the place of the original document. See also, Amendment to a Complaint.