lämmittäneeseen
lämmittäneeseen is the partitive plural form of the Finnish past active participle of the verb lämmittää, which means "to heat" or "to warm." The past active participle in Finnish describes an action that has been completed by the subject. When it is in the partitive plural case, it indicates that the action was performed by multiple subjects and that the object of the action is indefinite or part of a larger whole.
Therefore, lämmittäneeseen refers to something or someone that has been heated or warmed by multiple entities.