A Trumpence to me, sounds like an olde English synonym for pittance. Hopefully, I’m wrong.
I believe your thinking of tuppence, or twopence, i.e. two copper pennies.
thrupence is t6hree copper pennies...
I believe your thinking of tuppence, or twopence, i.e. two copper pennies.
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Tuppence to spend, tuppence to lend and tuppence to send home to my wife, poor wife.
From memory from when I was in first grade, 65 years ago.