Subterfuge :: Subterfluous (a.) Running under or beneath.
Subterrane :: Subterfuge (n.) That to which one resorts for escape or concealment; an artifice employed to escape censure or the force of an argument, or to justify opinions or conduct; a shift; an evasion..
Subterranity :: Subterraneous (a.) Being or lying under the surface of the earth; situated within the earth, or under ground; as, subterranean springs; a subterraneous passage..
Subterrany :: Subterranity (n.) A place under ground; a subterrany.