the ones that you can usually assume are wrong are the ones regarding the spelling of words -- I mean, which dictionary did they use? for instance, there's an old word meaning crooked that ends in -mt (crommt); and then for words ending in -dous, see the link (there are 175 -dous entries in OED2).

http://wordsmith.org/board/showthreaded.pl?Cat=&Board=miscellany&Number=14877

p.s. - (Dous y'all know any that begin with it?) <scratching head> boy, that's a tough one... I'll have to think on that one... douse the lights on your way out, will ya?