laskevan
Laskevan is a Finnish linguistic term referring to a specific inflected form of the adjective or present participle laskeva. The base verb laskea has senses related to counting, calculating, or lowering, and laskeva is used to describe ongoing action or a characteristic state. The form laskevan is the inflected form you encounter when laskeva modifies a noun in certain grammatical cases, most commonly in phrases that require a genitive or other case of the noun.
In practice, laskeva and its inflected form laskevan appear in noun phrases describing something that is decreasing
Etymology and morphology: laskeva is formed from the verb laskea plus the participle suffix -va; laskevan is
See also: Laskea (Finnish verb), Finnish grammar, Present participles in Finnish, Adjective declension in Finnish.