tekijälleen
The term "tekijälleen" is a Finnish word that translates to "for himself" or "for herself" in English. It is a possessive suffix that indicates something is done or possessed by the subject of the sentence. For example, "Hän teki sen tekijälleen" means "He/She did it for himself/herself." The suffix "-lleen" is added to the genitive form of the possessive pronoun (e.g., "hän" becomes "hänelle" in the allative case, and then "-en" is added to create "hänellelleen").
This grammatical structure is common in Finnish and is used to clarify who is benefiting from or