The prefixes "Trans" and "CIS" date back further than the LGBT movement.
http://en.m.wikipedia.org/wiki/Cis%E2%80%93trans_isoMayenneNo shit. Like all of the language co-opted by the Hegelian dialecticalists, the words are usually pre-existent with the neo-definition imbued upon them when needed by the respective movement of their patronage, but they always choose pre-existing words because those are the easiest from which to hide their true meaning, and to covertly slip subliminal notions of societal subversion.
(Edited 36 seconds later.)