järjestettyja
The Finnish word "järjestettyjä" is the plural form of the past passive participle of the verb "järjestää." "Järjestää" itself has several related meanings, most commonly translating to "to arrange," "to organize," or "to host." Therefore, "järjestettyjä" typically means "arranged," "organized," or "hosted" when referring to multiple items or events.
For instance, if one were discussing a series of events, "järjestettyjä tapahtumia" would translate to "organized
The grammatical function of "järjestettyjä" is adjectival, describing nouns. Its declension depends on the grammatical case