täydennyksenä

Täydennyksenä is the essive form of the Finnish noun täydennys, meaning a supplement or addition. In Finnish grammar, the essive case expresses a temporary state or role, roughly translated as “as a ….” Therefore täydennyksenä denotes “as a supplement” or “in the capacity of a supplement.”

Grammatically, täydennyksenä functions as a predicative complement in constructions describing function or status within a larger arrangement. The form is created by adding the essive suffix -na/-nä to the noun, with usual phonological assimilation. For täydennys, the result is täydennyksenä.

Usage examples illustrate its sense of role. For instance, Sopimus toimii täydennyksenä pääsopimukselle. (The agreement serves as a supplement to the main agreement.) Another example is Tämä lisä on täydennyksenä kokoelmaan. (This addition is a supplement to the collection.) In practice, the construction appears mainly in formal or technical Finnish, such as legal, administrative, or scholarly writing, rather than in everyday speech.

Notes and related terms: täydennyksenä signals a temporary or specific function within a broader framework, not a permanent renaming. It is part of the broader category of essive constructions in Finnish grammar. See also essive (Finnish grammar) for a fuller discussion of the case and its uses.

See also: Essive (Finnish grammar).