kaksoissijais

Kaksoissijais is a term used in Finnish to describe a type of compound word where two nouns are combined to form a new word. The first noun, known as the "sijainen" or "dependent noun," is in the genitive case, while the second noun, the "pääaine" or "main noun," remains in its original case. This structure allows for the creation of complex terms that can be more precise and descriptive than single nouns.

The genitive case in Finnish is formed by adding the suffix "-n" to the stem of the noun. For example, in the compound word "koulusijais," the word "koulu" (school) is in the genitive case, indicating that it is the dependent noun. The main noun, "sijais," means "substitute" or "replacement," resulting in the compound meaning "school substitute" or "school replacement."

Kaksoissijais is commonly used in Finnish to create technical terms, scientific names, and other specialized vocabulary. It is a productive and flexible system that allows for the creation of a wide range of compound words, contributing to the richness and expressiveness of the Finnish language.