nousuihin

Nousuihin is a Finnish grammatical form, not a separate concept. It is the illative plural form of the noun nousu, meaning rise, ascent, or increase. In Finnish, the illative case marks movement toward or into something, and the plural illative specifically indicates movement into multiple rises or upward phases. The basic forms involved are nuo: nousu (singular nominative), nousuun (illative singular), nousuihin (illative plural), and nousut (plural nominative).

Use of nousuihin occurs mainly in formal or analytical writing, such as economic reports, demographic analyses, or discussions of rising trends over successive periods. It signals a transition into periods characterized by increases or upward movements across several instances, rather than a single rise. Because it is a grammatical inflection, its occurrence depends on the surrounding syntax and the intended sense of progression toward multiple upward phases.

Contextual notes include that nousu itself covers a range of related meanings—economic growth, price increases, population growth, or physical elevations. Nousuihin therefore often appears in discussions of cyclical or multi-period uptrends, sometimes alongside related forms like nousuun (into an upward phase, singular) or lasku (decline).

See also: nousu, ilatiivi (illative case), Finnish grammar, ekonominen kasvu (economic growth).