Kasseihin

Kasseihin is a Finnish word that functions as the illative plural form of the noun kassi, meaning bag or shopping bag. It expresses movement into multiple bags, or direction toward the interiors of several bags. The corresponding singular form is kassiin, meaning into the bag.

In usage, kasseihin is common in contexts involving packing or transferring items into bags, such as at a checkout, in a store, or when organizing purchases. For example, Ostokset laitettiin kasseihin, meaning “the groceries were put into the bags.” Another example is Voisitko laittaa nämä tuotteet kasseihin, meaning “Could you place these items into the bags?”

Morphologically, kassi serves as the base noun; its plural nominative is kassit (the bags), and its illative plural form is kasseihin (into the bags). This reflects Finnish case grammar, where illative forms denote movement toward a destination, with the plural suffix adapting to multiple bags.

Notes and related terms: the singular illative form is kassiin, used when referring to a single bag. The word kassi itself is commonly used in everyday Finnish to describe shopping bags, tote bags, or any container used to carry purchases. See also: kassi, illatiivi (illative case), Finnish grammar.