vuoristoisista

vuoristoisista is the elative plural form of the Finnish adjective vuoristoinen, which translates to "mountainous" or "hilly". The elative case in Finnish indicates movement from within or separation from something. Therefore, "vuoristoisista" specifically means "from the mountainous regions" or "out of the hilly areas". This grammatical form would be used in a sentence to describe something originating from or being extracted from mountainous terrain. For instance, a sentence might discuss minerals vuoristoisista, meaning minerals found within or taken from mountains. Alternatively, it could refer to people or animals vuoristoisista, indicating their origin or departure from such landscapes. Understanding the elative case is crucial for correctly interpreting the precise meaning of "vuoristoisista" in context. It signifies a departure or extraction from the interior of mountainous or hilly areas.