(also accessary )
■ noun ( plural accessories )
1》 a thing which can be added to something else in order to make it more useful, versatile, or attractive.
↘a small article carried or worn to complement a garment.
2》 Law a person who assists the perpetrator of a crime without taking part in it.
■ adjective chiefly technical subsidiary or supplementary.
Derivatives
accessorial adjective ( chiefly Law ).
Origin
ME: from med. L. accessorius 'additional thing', from L. access- , accedere (see accede ).