Ex‐tra″ne‐ous (?), a. [L. extraneus, from extra. See Extra-, Strange.] Not belonging to, or dependent upon, a thing; without or beyond a thing; not essential or intrinsic; foreign; as, to separate gold from extraneous matter.
Nothing is admitted extraneous from the indictment. Landor.
— Ex‐tra″ne‐ous‐ly, adv.