For the past five years, we've been talking more about money than ever before. From the 2007 Global Financial Crisis, to the recent mammoth loss at J.P. Morgan Chase, the language of finance seems to occupy more of our brain space. Today, Charity speaks to our "Word Maven," Patricia O'Conner about the origins and changing use of such terms as "buck," "salary," "credit," "two bits," and many more. O'Conner is the author of popular word books including "Origins of the Specious," "Woe is I," and "Words Fail Me."