Höyryyn

Höyryyn is the illative singular form of the Finnish noun höyry, meaning steam. In Finnish grammar, the illative case marks movement into a place or state, so höyryyn roughly translates to into steam or into the state of being steamed. The form is created by adding the illative suffix to the stem höyry, with the usual phonological adjustments that govern illative formation in Finnish.

The word commonly appears in descriptive or technical Finnish contexts where steam, humidity, or vapor is involved. This can include discussions of steam baths, boiling processes, or humid environments, where the text conveys entering or existing within steam. As a grammatical form, höyryyn is one of several illative variants used with nouns to express directional or state-related meaning in Finnish.

In broader linguistic terms, höyryyn illustrates how Finnish uses case endings to convey spatial or experiential relations without prepositions. It is part of the illative system that enables concise expression of movement into a state or setting, distinct from other cases that mark location, origin, or ownership.