Cashier
late 16th century: from Dutch cassier or French caissier, from caisse ‘cash’.
wiktionary
From Dutch casseren, kasseren, from Old French casser(“to break (up)”). During a ceremonial cashiering of a ranking military officer, the breakup was often symbolized dramatically by literally breaking the officer’s sword.
From Dutch cassier or French caissier, from French caisse.
etymonline
cashier (n.)
"person in charge of money," 1590s, from French caissier "treasurer," from caisse "money box" (see cash (n.)). The immediate source of the English word might be Middle Dutch kassier.
cashier (v.)
"dismiss from an office or place of trust," 1590s, from Middle Dutch casseren, kaseeren "to cast off, discharge," from French casser "to discharge, annul," from Late Latin cassare "annul," from Latin cassus "void, empty" (from extended form of PIE root *kes- "to cut"). Related: Cashiered; cashiering.
