What better way to enhance the fallaciloquence of your tortiloquies than exhibiting your verbal pugnastics and obstrilligating clarity with a few obscure words on the brink of extinction? You can browse a slew of them, and even "adopt" a few, at http://savethewords.org, a clever website by the Oxford Dictionaries that makes good use of "bad design" to make an otherwise boring list of words into a fun experience.