cash·ier 1 
(kă-shîr)
(kă-shîr)n.
1. The officer of a bank or business concern in charge of paying and receiving money.
2. A store employee who handles cash transactions with customers.
[Dutch cassier or French caissier, both from French caisse, money box, from Old Provençal caisa, from Vulgar Latin *capsea, from Latin capsa, case.]