obs. ff. CASH sb.2; cf. Pg. caixa.
172751. Chambers, Cycl., s.v., Old caxas nearly the same with the caches of China, and the cassies of Japan.
1796. Morse, Amer. Geog., II. 503. The caxee is made of a white metal of about the size of our farthing, with a small square hole driven through the middle.