What does antedating mean?
Antedating refers to the practice of assigning a document, event, or record a date earlier than the date on which it actually occurred or was created. It appears most often in formal contexts — law, finance, history, and archival scholarship — where establishing accurate chronology matters. A historian might speak of the antedating of a medieval charter, while an accountant might investigate the antedating of invoices as a way of manipulating accounts across reporting periods. The word also serves as the present-participle form of the verb 'antedate', which can mean either to give something an earlier date or simply to precede something else in time. Its opposite is postdating, the assignment of a later-than-true date. Though closely related to the more colloquial term 'backdating', antedating has a more technical flavour and is the preferred term in scholarly and legal discussion of chronology.
The act or instance of assigning something a date earlier than its actual date.
"The antedating of the treaty copy complicated efforts to establish which version was signed first."
Common in legal, historical, and financial writing.
The -ing form of the verb 'antedate': to give something an earlier date than the true one, or to occur earlier in time than something else.
"They were accused of antedating the contracts to avoid the new regulations."
Antedating a cheque was once such common practice that banks simply accepted it — until the law stepped in and made deliberately antedated instruments a legal minefield.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of antedating
Antedating derives from the Latin preposition 'ante', meaning 'before', combined with 'date', ultimately from Latin 'data' ('given'), the term used for the date line on documents. The compound entered English in the early modern period alongside other 'ante-' formations such as 'antecedent' and 'anterior'. It shares this root with a broad family of Latinate words expressing priority or precedence in time.
Related word forms
How antedating is actually used
Formal register, most often encountered in legal, historical, archival, and financial contexts. In everyday speech, 'backdating' is the more familiar term for the deliberate assignment of an earlier date; 'antedating' carries a slightly more technical tone. It functions both as a noun naming the act and as the -ing form of the verb 'antedate'.
Easily confused with antedating
Postdating assigns a date later than the actual one, whereas antedating assigns a date earlier than the actual one.