Obscure/Archaic Words etc.

It might be interesting, if there is interest enough among your contributors to have category for words that are obscure, archaic, or have had their original meanings changed. For one of these, I give the example of "moot". It is currently used to mean a point or subject not worth discussion. But, according to Webster, it comes from the Middle English meaning opposite to its present use. I believe this change came about from its being used in a facetious manner.

Comments or stones anyone?
ES