petty cash

(usu small) amount of money kept in an office from or for small payments （通常指小额的）零用现金.

petro-, petrochemical, petrodollar, petroglyph, petrography, petrol, petrol bomb, petrol fumes, petrol tank, petroleum, petrologist, petrology, petticoat, pettifogging, pettily, pettiness, pettish, pettishly, pettishness, petty, petty larceny, petty officer, petulance, petulant, petulantly, petunia, Peugeot, pew, pewit, pewter, peyote, pfennig, PG, phagocyte, phalanx, phallic, phallus, phantasm, phantasmagoria, phantasmagoric,