EXTRA'NEOUS, adjective [Latin extraneus.] Foreign; not belonging to a thing; existing without; not intrinsic; as, to separate gold from extraneous matter. Relation is not contained in the real existence of things, but is extraneous and superinduced. Extraneous fossils, organic remains; exuviae of organized beings, imbedded in the strata of the earth.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI