kertyessä

Kertyessä is a Finnish non-finite verb form derived from the verb kertyä, which means to accumulate or to pile up. The form kertyessä roughly corresponds to the English expression “as it accumulates” or “when it has accumulated,” and it is used to introduce a subordinate clause that describes the circumstances or timing of another action.

Used to indicate simultaneity or conditional circumstance, kertyessä often appears in descriptive, explanatory, or formal prose. It functions like an adverbial participle, linking a background process of accumulation to the main clause.

Etymology and related forms: The word is built from the verb kertyä plus the suffix -essä, which marks the adverbial participle. Related non-finite forms include the infinitive kertyä and other participial forms based on the same verb, such as the past participle kertyneen in finite constructions.

Examples:

- Kertyessä lunta maahan, maa peittyy valkoiseksi. (As snow accumulates on the ground, the surface becomes white.)

- Kertyessä rahaa säästöön, taloudellinen tilanne paranee. (As money accumulates in savings, the financial situation improves.)

- Kertyessä tietoja järjestelmään, raportointi helpottuu. (As information accumulates in the system, reporting becomes easier.)

See also: kertyä, kertyminen, adverbial participle (Finnish grammar).