Though interesting may be this change of meaning I am nonplussed in both its actual meanings about the fact. Words turn their cloack as easily as politicians. I've looked up the other word you smuggeled in: enantiodromia ( never heard it before and sounding very Greekish to me)

Enantiodromia. Literally, "running counter to", referring to the emergence of the unconscious opposite in the course of time. This characteristic phenomenon practically always occurs when an extreme, one-sided tendency dominates conscious life; in time an equally powerful counterposition is built up, which first inhibits the conscious performance and subsequently breaks through the conscious control. (from Wikipedia)