POSTDATE

[verb] [T] - to happen or occur after (something)Most manuscripts postdate the stories which have circulated by word of mouth for centuries.Compare backdate; predate.To postdate a document such as a cheque or letter is to write a date on it that is later than the date on which you are writing it, usually to get some advantage.Luckily, she let me postdate the cheque until the end of the month, so I won't have to pay the money until I get my salary.