accessory - noun

clothing that is worn or carried, but not part of your main clothing

a supplementary component that improves capability

someone who helps another person commit a crime

accessory - adjective

• aiding and abetting in a crime
• furnishing added support

accessory - thesaurus

accessary   accouterment   accoutrement   adjunct   adjuvant   ancillary   appurtenance   appurtenant   auxiliary   supplement