korkeilla

Korkeilla is the adessive plural form of the Finnish adjective korkea, meaning on high or at elevated places. It is used to indicate location for plural nouns in a phrase that describes where something is situated or occurring.

Morphology and usage: In Finnish, adjectives agree with the noun they modify in number and case. korkeilla is the plural adessive form, corresponding to -illa/-illä in the locative system. The form korkeilla typically appears before a plural noun in an adessive construction, as in korkeilla vuorilla (on high mountains) or korkeilla paikoilla (at high places). It is not normally used as a predicate adjective with the verb olla in plural, where korkeita is the usual form (for example, talot ovat korkeita, meaning the buildings are tall/high).

Etymology: korkeilla derives from the base adjective korkea, meaning high or tall, combined with the locative suffix -lla/-llä in its plural form.

Examples and contexts: Korkeilla vuorilla sataa usein lunta, illustrating how the form specifies location at elevated terrain. The expression korkeilla paikoilla is common in descriptions of geography, habitats, or man-made structures situated at height, such as towers, cliffs, or overlooks. In written Finnish, korkeilla is frequently paired with a concrete plural noun in locative to convey spatial relationships or meteorological patterns at elevation.

See also: korkea, korkeus, adessiivi (locative case), Finnish grammar.