groat UK /ɡɹəʊt/US /ɡɹoʊt/ noun5 •[in the plural] Hulled grain, chiefly hulled oats. •A proverbial small sum; a whit or jot. •(historical) Any of various old coins of England and Scotland. •(historical) Any unit of currency worth four pence. •(historical) A historical English coin representing such a unit: a silver coin worth four English pennies, still minted as one of the set of Maundy coins.The needy groom, that never finger'd groat, Would make a miracle of thus much coin … — 1589 formsgroats