viilensivät
Viilensivät is a Finnish word. It is the third-person plural past tense of the verb "viilentää," which means to cool down, to make cooler, or to moderate. Therefore, "viilensivät" translates directly to "they cooled down" or "they made cooler."
This verb can be used in various contexts. For example, it could describe people cooling themselves down
The word's usage extends to more abstract concepts as well. It can imply a lessening of intensity