The most famous reason given for why a pound is referred to as a "quid," is because of "quid quo pro." A "quid quo pro" is an equivalent amount of something.
http://answers.ask.com/Reference/Dictionaries/why_is_a_...
English soldiers adopted the reference to what they heard as "quid", to mean the pound. ... Seeking for a common unit of exchange plugs of (chewing) tobacco called a QUID gradually gained poularity. Etymology of this is thought to be "cud" (as in "chewing"). Don't know how quids came back to UK though - so maybe just...
www.guardian.co.uk/notesandqueries/query/0,5753,-22239,... www.guardian.co.uk/notesandqueries/query/0,5753,-22239,00.html
ROOT OF ALL EVIL; My American girlfriend was mystified to be charged an "Alan Whicker" for some veg by a stall-holder on Walthamstow market. ... No answer I'm afraid, but while we're on the subject, where does the term 'Quid' come from?
www.guardian.co.uk/notesandqueries/query/0,5753,-25438,... www.guardian.co.uk/notesandqueries/query/0,5753,-25438,00.html
Pound sterling - Wikipedia, the free encyclopedia
The pound sterling (symbol: £ ; ISO code: GBP ), often simply called the pound , is the currency of the United Kingdom, its Crown dependencies (the Isle of Man and the Channel Islands) and the...
en.wikipedia.org/wiki/Pound_sterling
Coins of the pound sterling - Wikipedia, the free encyclopedia
The standard circulating coinage of the United Kingdom is denominated in pounds sterling (symbol "£"), and, since the introduction of the two pound coin in 1998, ranges in value from one penny to two ...
en.wikipedia.org/wiki/Coins_of_the_pound_sterling
The next higher basic unit is the pound, in later times also called a quid, which equals twenty shillings (or four crowns). A gold sovereign is equivalent to a pound, while a gold guinea is worth one shilling more (twenty-one shillings).
www.coins.nd.edu/ColCoin/ColCoinIntros/BritishDenominat... www.coins.nd.edu/ColCoin/ColCoinIntros/BritishDenominations1.html
Quid is a slang term referring to the unit of currency, the Pound, used by many Commonwealth countries, but originating in Britain possibly 300 to 400 years ago. The term may have originated with Quidhampton, the one time Royal Mint paper m...
http://wiki.answers.com/Q/Why_is_the_British_Pound_call...
Dear Word Detective: Why is an easy-to-catch fly ball called a "can of corn"? ... Dear Word Detective: I was born and raised in England all my life, until my recent move to the States, and as far back as I can remember, people would refer to a English pound as a "quid." I have asked many friends and colleagues,
www.word-detective.com/122099.html