Preregistratum

Preregistratum is a term used mainly in Neo-Latin contexts to denote something that has been preregistered. It functions as a neuter form of a participial adjective built from prae- meaning before and registratum, the past participle of registrare. In Latin writings that discuss modern practices, preregistatum is often treated as a substantive or as an adjective describing documents, datasets, or protocols that were registered prior to a stated event.

Etymology and form: The word combines the prefix prae- (before) with registratum, the neuter singular participial form. In Latin style, it can appear as a substantive neuter noun (preregistratum) or be declined as an adjective to agree with a noun, with plural forms such as preregistrata for items that have been preregistered. Because it is a coined Neo-Latin formation, its exact morphology may vary slightly depending on the author’s Latinization.

Usage and context: Preregistratum is rare and primarily encountered in scholarly discussions that use Latin to describe contemporary concepts, such as preregistration in scientific research, ethics, or data archiving. It is not a standard Classical Latin term and is typically used for clarity in Latin-language texts about preregistration practices. In English-language writing about Latin terminology, preregistratum may be cited as a gloss for “preregistered item.”

See also: preregistration, Latin neo-Latin coinages, archival terminology.