(A). A maravedi (q.v.), a small obsolete Spanish copper coin of less value than a farthing.
“What a trifling, foolish girl you are, Edith, to send me by express
a letter crammed with nonsense about books and gowns, and to shde the
only thing I cared a marvedie about into the postscript.” —
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894