kehitykselleen
kehitykselleen is a Finnish word that translates to "for its development" or "for their development". It is the allative case of the possessive form of the noun kehitys, which means development or progress. The word is often used in contexts discussing the growth or advancement of something, whether it be a person, a project, a company, or a society.
The allative case in Finnish, indicated by the suffix -lle, denotes movement towards, or purpose for, something.
The plural possessive form, kehityksilleen, would translate to "for their development", referring to the development of