Accessorily :: Accessorily (adv.) In the manner of an accessory; auxiliary.
Accessoriness :: Accessoriness (n.) The state of being accessory, or connected subordinately..
Accessory :: Accessory (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..
Accessory :: Accessory (n.) That which belongs to something else deemed the principal; something additional and subordinate.