I doubt enough people do that to cause an actual lexical change
There's stupidity and there's accepted merging/streamlining
(
Shada,
Fri 1 May 2009, 16:30,
archived)
i'd argue confusing jealousy and envy is stupidity as well.
they describe utterly different emotions.
(
Tom OBedlam I have control of a tank,
Fri 1 May 2009, 16:33,
archived)