Itäisillä

Itäisillä is a Finnish inflected form that functions as an adessive plural. It is not a standalone noun but the form used when the head noun is plural and in the adessive case, indicating “on/at/with the eastern ones.” The base adjective is itäinen (eastern). In plural nominative the form is itäiset (the eastern ones); adding the adessive plural suffix -llä yields itäisillä.

Morphology and usage explain how it is produced and used. Itäiset serves as the plural subject or object referring to eastern things or people, and the adessive -llä attaches to yield itäisillä, which then agrees with the head noun in number and case. Examples include itäisillä alueilla (in the eastern areas) and itäisillä ihmisillä (among the eastern people). The meaning of itäisillä depends on the noun it accompanies and the surrounding context.

In typical usage itäisillä appears in descriptive or comparative prose rather than as a fixed proper noun. It often signals location, affiliation, or regional or cultural grouping relative to a reference point, such as a western or central baseline. Because it is an inflected form, its interpretation is tied to the accompanying noun phrase.

Examples:

- Itäisillä alueilla sataa talvella enemmän kuin länsiosissa. (In the eastern areas it snows more in winter than in the western parts.)

- Itäisillä ihmisillä on rikkaita kulttuuriperinteitä. (Eastern people have rich cultural traditions.)

- Itäisillä on pitkä historia kauppareittien suhteen. (The easterners have a long history in terms of trade routes.)

See also: Itä-, itäinen, adessive case, Finnish grammar.