he word is variously attributed. Some claim that the word "cash" comes from the modern French word caisse, which means (money) box, from the Provençal word caissa, from the Italian cassa, from the Latin capsa all meaning box. In the 18th century, the word passed to refer to the money instead of the actual box containing it.[1] Another claim is that it was derived from Tamil word kāsu (Tamil: காசு) meaning a coin, by East India Company.[2][3][4]
"Cash" used as a verb means "to convert to cash"; for example in the expression "to cash a cheque".