Pronunciation: (pōst-dāt', pōst'-), [key]
—v.t., -dat•ed, -dat•ing.
1. to date (a check, invoice, letter, document) with a date later than the actual date.
2. to follow in time: His recognition as an artist postdated his death.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.