coin purse; small money pouch; till
Refers to a small container for coins, often a drawstring pouch or a compartment in a cash register. The word 銭 (zeni) specifically means small change or coins, so it emphasizes coin storage rather than bills.
My grandmother tucked a coin purse into her kimono sash.
Take out some change from the shop's till.
Compound of 銭 (zeni, 'small change, coins') and 入れ (ire, 'container, case'), literally 'coin container'. The exact historical derivation is uncertain, but the word has been used since at least the Edo period for small money pouches.