Welcome to Mailbag Friday, where we answer your burning questions about the origins of words and phrases. Ivete L. of New York, NY asks: "You can be overwhelmed, and I suppose you can even be underwhelmed. But why can't you be just plain whelmed?"

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Today's question for Mailbag Friday comes to us from Valerie P. of Ottawa, Ontario. Valerie writes: "I was visiting a heritage village in Nova Scotia when a guide in a traditional tailor's house told me the origin of the expression, mad hatter. He said that the beaver fur the popular top hats were made of was preserved with mercury. The workers gradually absorbed this mercury while making the hats and eventually became mad. The explanation seems a bit sketchy; can you fill in the details, or correct the explanation?"  Continue reading...

Last week we featured a debate over contemporary usage of whom, with Baltimore Sun copy editor John McIntyre squaring off against Stanford linguist Arnold Zwicky. To be honest, the exchange was a bit too civil and reasonable to live up to its billing as a "usage showdown" — at least based on the Visual Thesaurus definition of showdown as "a hostile disagreement face-to-face." I was amused to see that on his copy-editing blog, "You Don't Say," John McIntyre facetiously referred to the debate with an even more inappropriate term: smackdown, which most people (in the U.S. at least) would associate with professional wrestling. Other violent confrontations ending in -down include beatdown and throwdown. And where do hoedowns fit into all of this?  Continue reading...

For today's installment of Mailbag Friday, our question comes from VT subscriber Barry Francolino in Romania. (One of our many far-flung correspondents!) Barry writes, "Just interested to know where the word/phrase/idea pipe dream comes from." The definition given by the Visual Thesaurus, "a fantastic but vain hope (from fantasies induced by the opium pipe)," gives a whiff of its origin.  Continue reading...

It's one of the most famous quotations in modern history. But who first wrote it? In the Yale Alumni Magazine, Fred Shapiro presents new historical evidence and sparks a debate that is far from serene.

If there's one word that captures the zeitgeist of our current economic downturn, it's subprime. The American Dialect Society named it the Word of the Year for 2007, and as I described in my last column it is among the new entries in the latest updates of Merriam-Webster's Collegiate Dictionary and the Concise Oxford English Dictionary. But it's a pretty odd word when you stop to think about it. The newly announced Merriam-Webster definition reads as follows: "having or being an interest rate that is higher than a prime rate and is extended especially to low-income borrowers." Wait a minute: a loan with a rate that is higher than prime is called sub-prime? How did that happen?  Continue reading...