subversive - Dictionary definition and meaning for word subversive
subversive--->reversive--->go against established rule.Revert (to cause downfall) from inside.
akin to invert (to place upside down), convert (to modify into another shape),. subvert is to "destroy something".
subvert - is to sub-war or sub-turn(vert means turn)
subverse can be thought of as sub+verse, where verse is a novel expression so to bring a novel expression we need to destroy the sub part..