accessoriae

Accessoriae is a Latin term used in legal and philological contexts to denote accessories or auxiliary elements attached to a principal object. The form accessoriae is the feminine plural that appears in Latin as an adjective or noun to indicate items that belong with, or are incidental to, the main thing.

In ancient and medieval legal texts, the concept is encountered as res accessoriae or iura accessoria, referring to goods, rights, or privileges that accompany a property or obligation and are typically treated as inseparable from the primary subject. In Roman law, accessoriae could include appurtenances such as buildings erected on land, rights or burdens that run with the property, and other incidents that attend the main estate. The precise scope varied by source and period, and jurists sometimes described accessoriae with different emphases.

In later medieval and early modern charters, the term continued to surface in discussions of attachments to premises and moveable items declared to be part of a principal bundle. In modern scholarship, accessoriae is primarily of historical interest and is studied to understand how Latin property concepts were framed in Latin sources; it is not a standard term in contemporary civil codes.

See also appurtenance, accessory, res, ius.

Further reading includes Latin legal dictionaries and scholarly works on Roman property law.