RE:I came across something interesting: in Indonesian, capai means shattered or knackered. In Maori, kapai means AOK.
there is an italian word, that is used in NY (and other east coast cities with large italian populations.) capicse (not sure of the spelling.. someone will get it right..that mean "do you understand? " (or "have you got that in your head"?)
there is also capute -that means dead-- as in "the car was totalled, it's capute!"
it also comes from the italian, for headless.
capital crimes result in capital punishment, that sometimes means decapitating a person.. all of them have the same latin root word for head!