appurtenance
ap-pur-te-nance
noun
A subordinate item or accessory belonging to something more significant.
"The knight's armour and its appurtenances were meticulously polished."
noun
A right, privilege, or property belonging to a principal property.
"The right of way is an appurtenance to the estate."
Thesaurus
Synonyms: supplement, accessory, add-on, gear, paraphernalia