Kiinnittäänsä
Kiinnittäänsä is a Finnish word formed by combining the verb "kiinnittää" (to attach, fasten, secure) with the possessive suffix "-nsä" (his/her/its/their). The suffix "-nsä" is a third-person possessive suffix, meaning it refers to something belonging to the subject of the sentence. Therefore, "kiinnittäänsä" translates to "to attach/fasten/secure his/her/its/their own." The reflexive nature of the suffix is crucial here; it indicates that the action of attaching or fastening is being done by the subject to something that belongs to that same subject.
For instance, in the sentence "Hän kiinnittäänsä takkinsa," the subject "hän" (he/she) is performing the action