jäätyessä
Jäätyessä is a Finnish form derived from the verb jäätyä, meaning to freeze or to become solid. Grammatically, it is an adverbial participle that expresses a time or condition during which a freezing process occurs. In English it is commonly rendered as “as/when something freezes” or “in the act of freezing.”
Grammatically, jäätyessä is the inessive participle form of jäätyä and is used to introduce adverbial clauses
Contexts for its use include descriptions of natural processes (ice formation on bodies of water, roads, and
Vesi jäätyy, ja jäätyessä veden tilavuus voi muuttua.