Expand your U.K. IQ
The term “quid” is used in reference to the British pound sterling, although it also has been used to refer to the old sovereign coin.
Quid is not a proper title for any currency, but it is widely used, like “buck” is used for the American dollar. But unlike the buck, the quid is both singular and plural.
So whether you’ve got 1 pound or 50 pounds, you’ve got 1 quid or 50 quid.
The earliest known use of quid is from 1688, although the history of the slang term is elusive. Webster’s New World Dictionary’s listing for quid has its roots going back to Latin and meaning “something.”
Many Americans are familiar with the Latin phrase “quid pro quo,” meaning “something for something.”
It is theorized that the term quid evolved from someone giving something (a pound) and expecting something in return. So, by substituting in the Latin term, you give someone a “quid” and get something back.
And that’s our two quid worth.