Koostetusta

Koostetusta is a Finnish grammatical form, specifically the elative singular of the past passive participle koostettu, meaning “composed” or “assembled.” As an elative form, it marks origin or source, roughly translating to “from the composed/assembled [thing].” The concept arises from the verb pairs koostua (to consist of) and koostaa (to compose/assemble), with koostettu functioning as an adjective or participle and koostetusta used to indicate source in the elative case.

In use, koostetusta appears mainly in formal or technical writing when describing materials, mixtures, or works that are said to be formed from components. It is less common in everyday speech, where simpler constructions are typically preferred. The plural elative form would be koostetuista.

Examples:

- Koostetusta aineksesta muodostuu tasainen seos. (A smooth mixture forms from the composed ingredients.)

- Massasta voidaan valmistaa tuotteita koostetusta massasta. (From the composed mass, products can be manufactured.)

These examples illustrate how koostetusta expresses origin or source related to something that has been composed or assembled.

Related terms include kooste (a compilation or montage), koostaminen (assembly or compiling), and koostua (to consist of). The form koostetusta is part of standard Finnish morphology for past passive participles used with elative case to indicate source, though its use remains relatively specialized and context-dependent.