keskinäisiksi

Keskinäisiksi is a Finnish grammatical form derived from the adjective keskinäinen, meaning mutual or reciprocal. It is the translative plural form, formed by adding the suffix -iksi to the stem keskinäis-, and it is used to indicate a change of state or designation into mutual entities or relations when the subject is plural.

In practice, keskinäisiksi is used in formal or technical language, such as legal, governmental, or academic texts, to describe arrangements, obligations, or relations that are reciprocal and shared among several parties. The form appears with nouns in translative case, typically describing what something becomes or is defined as, for example in phrases like keskinäisiksi velvoitteiksi (into mutual obligations) or keskinäisiksi suhteiksi (into reciprocal relationships).

Morphology and usage notes: keskinäisiksi is the plural translative form of keskinäinen. The corresponding singular form is keskinäiseksi. The translative case conveys a sense of turning into or being assigned a certain state, and the plural form is used when multiple entities are involved. Because of its formal register, keskinäisiksi is more common in written Finnish than in everyday speech.

See also: keskinäinen, translative case, Finnish adjective inflection, mutual relations.

Example: Sopimus muutti osapuolet keskinäisiksi velvoitteiksi. Translation: The contract turned the parties into mutual obligations.