Supervene :: Supervening (p. pr. & vb. n.) of Superven.
Supervened :: Supervacaneous (a.) Serving no purpose; superfluous; needless.
Supervenient :: Supervene (v. i.) To come as something additional or extraneous; to occur with reference or relation to something else; to happen upon or after something else; to be added; to take place; to happen.