heittämiseksi
Heittämiseksi is a Finnish verb form. It is the illative plural of the infinitive of the verb 'heittää'. The verb 'heittää' has a broad range of meanings, including to throw, to cast, to toss, to pitch, to hurl, and figuratively, to say or utter. It can also mean to give or offer, and in certain contexts, to abandon or dismiss.
The illative case in Finnish indicates movement into a place or state. When combined with the plural