pehmeään
Pehmeään is the illative singular form of the Finnish adjective pehmeä, meaning “soft.” In Finnish, the illative expresses motion into or toward something, often translated as “into the soft ….” Therefore pehmeään is used when the noun it describes is in the illative case, for example pehmeään tyynyyn (into the soft pillow).
As a grammatical form, pehmeään agrees with the noun in number and case. The illative singular of
Usage examples include: Hän upposi pehmeään tyynyyn. (She sank into the soft pillow.) Käsi upposi pehmeään lumeen.
Etymology-wise, pehmeä is a native Finnish adjective describing texture or feel, and pehmeään is its standard
See also: Finnish grammar, illative case, adjectives in Finnish, noun-adjective agreement.