Tietyinä

Tietyinä is the essive plural form of the Finnish adjective tietty, meaning certain or particular. In Finnish grammar, the essive case marks a temporary state or a role, and in plural forms it describes a set of things or a time when something occurs. Tietyinä is used with plural nouns to express “as certain [ones]” or to indicate a time frame such as “on certain days.”

Form and usage notes:

- The base form tietty changes into the essive plural tietyinä when describing a temporary state or a role for a plural noun, and it can also appear in time expressions.

- It is commonly found in both written and spoken Finnish, especially in more formal or descriptive contexts.

Common uses:

- Temporal: Tietyinä päivinä, tietyinä aikoina, tietyinä tilaisuuksina, meaning “on certain days,” “at particular times,” or “on certain occasions.”

- Descriptive: It can introduce a sense of specificity about a group or set of things, as in “tietyinä tilaisuuksina” (as certain occasions) or similar constructions, where the focus is on particular instances or conditions.

Examples:

- Tietyinä päivinä hän on energisempi. On certain days he is more energetic.

- Tietyinä vuosina talouskasvu hidastui. In certain years, economic growth slowed.

- Tietyinä tilaisuuksina järjestetään juhlia. On certain occasions, parties are held.

Etymology and related forms:

- Tietyin Finnish forms derive from tietty, meaning “certain” or “particular.” The essive plural adds a specific morphological ending to express a temporary or ongoing state in relation to plural nouns.

See also:

- Finnish grammar, essive case, adjective declension.