Meaning of ACCESSORY in English
( a. )
Accompanying as a subordinate; aiding in a secondary way; additional; connected as an incident or subordinate to a principal; contributing or contributory; said of persons and things, and, when of persons, usually in a bad sense; as, he was accessory to the riot; accessory sounds in music.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012