viileämmässäkin
"viileämmässäkin" is a Finnish word, a case form of the adjective "viileä" meaning "cool" or "mild." Specifically, it is the inessive plural form, translating to "in cooler (things/places/conditions)" or "even in cooler." The ending "-ssä" denotes the inessive case, indicating location within something, and the "-kin" suffix adds an emphasis, meaning "also" or "even."
This word is used to express a condition or situation that is cool or mild, and the