kiinnostavasta
Kiinnostavasta is the elative case of the Finnish word "kiinnostava." In Finnish grammar, the elative case is used to indicate movement out of or away from something, or to express a part of a whole. When applied to "kiinnostava," which means "interesting," "kiinnostavasta" translates to "from interesting" or "out of the interesting."
This grammatical form can appear in various contexts. For example, one might say something is "kiinnostavasta"
The elative case in Finnish is marked by the suffix "-sta" or "-stä," depending on vowel harmony.