I know that "electrocute" was originally a neologism meaning "execute with electricity," but for decades at least it's meant "put more volts through a person than they'd prefer." People commonly say "I electrocuted myself" if they get a stinging zap while installing a lightswitch or something.

The original meaning is a popular bit of trivia in today-I-learned circles right now, and it's historically interesting, but you should know it doesn't reflect common usage.