Pelf noun, money or wealth, especially if dishonestly acquired; lucre. Also a slang term for money.
Etymology: from the Old French pelfre (booty); related to the Latin pilāre (to despoil).
I came across this word today in The Times in an article about a British supermarket starting a pawn broking service, or more specifically a gold exchange service. I hadn’t encountered it before and thought at first that it was a typo. The context is:
Most of the other alchemists promising to turn gold into cupro-nickel are doing so at a rate so miserly that even a richly embossed heirloom would barely provide a widow’s pelf.
From: The Times, 3rd January 2011