kuponissa

Kuponissa is the inessive singular form of the Finnish noun kuponki, meaning coupon or discount voucher. The form expresses location, corresponding to "in the coupon" or "inside the coupon" in English.

Formation and usage: In Finnish, the inessive case is formed by adding -ssa to the noun stem. For kuponki, this yields kuponissa. It is used when referring to something that is located inside the coupon, for example a code or text printed on the coupon. Example: Koodi on kuponissa.

Etymology and related terms: The base noun kuponki is a loanword with cognates in Swedish kupong and English coupon; its exact etymology is not universally agreed, but it developed in Finnish in the context of consumer discounts and promotional offers.

Context and usage: In online shopping and retail promotions, phrases like kuponissa oleva koodi—"the code that is in the coupon"—are common. The inessive form is one of several location cases in Finnish used to specify where something is found or how it is applied within a coupon.