Some think this British slang word for a pound sterling comes from the Latin for "what"
[DOC] [TLE] Money Slang - English Slang - Learn English [PAR] Some non-slang words are included where their origins are particularly ..... of 
money, or a cost of something typically less than a pound, usually referring to a 
.... equating to twenty-one shillings, or in modern sterling one pound five pence.