coin-operated

The term "coin-operated" is a modern English compound adjective. Its first element, "coin," traces back to the Latin "cuneus," meaning wedge, reflecting the wedge-shaped dies used to stamp metal currency. The second element, "operate," originates from the Latin "operari," meaning to work or labor. The suffix "-ed" is added to the verb to create a participial adjective. Literally, the term describes a machine "worked by a coin," a concept that emerged with the proliferation of commercial vending machines and public appliances like laundromats in the late 19th and early 20th centuries, where inserting a coin activates the mechanism.

Structure: coin (money) + operate (work) + ed (adjective suffix) - coin: From Old French 'coigne' (wedge, stamp, piece of money), from Latin 'cuneus' (wedge). In this compound, it functions as a noun modifier meaning "activated by a coin." - operate: From Latin 'operatus', past participle of 'operari' (to work, toil). In this compound, it functions as the verb stem meaning "to function or work." - ed: A suffix of Old English origin, used to form adjectives from verbs or nouns, indicating "having the characteristic of."