[plagiarism](http://www.etymonline.com/index.php?term=plagiarism) [](http://dictionary.reference.com/search?q=plagiarism) 1621, from L. plagiarius "kidnapper, seducer, plunderer," used in the sense of "literary thief" by Martial, from plagium "kidnapping," from plaga "snare, net," from PIE base *p(e)lag- "flat, spread out." Plagiary is attested from 1597.
That doesn’t mean much, the existence of a work does not mean that it is not a behavior much of academia partook in. It is really until citations become the norm that plagiarism as we understand it.
That is a good point. Do you think you can cite something that would say when plagiarism became the norm?
Rothbard goes on to say that Smith lost a friendship by accusing plagiarism.
Funny that Smith taught ethics, but didn’t seem to be a very nice guy.