Accessory
A New Law Dictionary and Glossary · Alexander M. Burrill · 1850
A New Law Dictionary and Glossary
[L. Lat. accessorius, accessorium, qq. v.] Incident, appurtenant, or belonging to. When a subject is conveyed, every one of its accessories are understood to be conveyed with it, unless the contrary be expressed.
1 Kames* Equity, 240.
Accessorial is sometimes used in this sense.
Story on Bailment, § 54.