koostetut

Koostetut is a Finnish grammatical form: it is the plural past passive participle of the verb koostaa, meaning to compose, assemble, or put together. As a modifier, koostetut functions like an adjective and is used with plural nouns to indicate that something has been compiled or assembled.

In usage, koostetut describes information, lists, documents, or other items that have been prepared by gathering and organizing elements. It is common in contexts such as reports, data sets, instructions, and summaries. The form can appear in attributive position before a plural noun, for example, koostetut tiedot (compiled data) or koostetut ohjeet (assembled instructions), and it can also occur in predicate position with a plural subject, such as Nimet olivat koostetut ennen julkaisua (The names were compiled before publication).

Etymologically, koostetut derives from koosta- or koostaa, with the past passive participle koottettu (has been composed/assembled) serving as the base; the plural suffix -t plus the common participle ending -ut yields koostetut. The related singular form is koostettu, used with singular nouns.

Koostetut is distinct from related forms such as koostettu (singular past participle) and from the verb koosta (to combine as a noun or concept). It is primarily a descriptive tool in Finnish, indicating that a set of elements has been brought together into a whole.