accessory >> /əkˈsɛs(ə)ri/
Definition: [noun] A thing which can be added to something else in order to make it more useful, versatile, or attractive.
Example: a range of bathroom accessories
Definition: [noun] Someone who gives assistance to the perpetrator of a crime, without directly committing it, sometimes without being present.
Example: she was charged as an accessory to murder
Definition: [adjective] Contributing to or aiding an activity or process in a minor way; subsidiary or supplementary.
Example: functionally the maxillae are a pair of accessory jaws