1. (a.) Contributing to the same stock or purpose; promoting the same end; bringing assistance to some joint design, or increase to some common stock; contributive.

2. (n.) One who contributes, or is liable to be called upon to contribute, as toward the discharge of a common indebtedness.

accessory additional adjuvant aidful ancillary another appurtenant auxiliary beneficial collateral concessive conducive constructive donative extra farther fresh further furthersome good for helpful intestate more new other plus positive profitable remedial salutary serviceable spare subservient subsidiary supernumerary supplemental supplementary surplus testamentary testate therapeutic ulterior useful