Kerrostuneisiin

Kerrostuneisiin is a Finnish inflected form of the adjective kerrostunut meaning layered or stratified. It is used to describe things that have formed or exist as layers, and it functions within the Finnic case and number system to indicate movement toward or into a group of stratified entities. In usage, kerrostuneisiin appears as part of a phrase rather than as a standalone noun.

The form arises from the verb kerrostua, which means to become layered or to form layers. When referring to multiple layered items, the illative plural form kerrostuneisiin is used to express “into the stratified ones” or “into stratified formations.” The stem kerrostune- combines with a plural illative suffix to yield this ending, and its appearance is common in academic writing.

Typical contexts include geology and social sciences. In geology you might encounter phrases such as kerrostuneisiin sedimentteihin or kerrostuneisiin kivilajeihin, referring to movement toward or study of stratified sediments or rocks. In sociology or anthropology, phrases like kerrostuneisiin yhteiskuntaluokkiin describe relations or processes involving stratified social groups.

Notes and related terms: kerrostuneisuus is the noun form meaning stratification or the property of being layered. Kerrostuminen is the process of becoming layered. Kerrostuneisiin is therefore a grammatical form rather than a separate concept, and its exact meaning depends on the surrounding noun and context. The term is most relevant in formal or technical Finnish, where precise case and number marking are important.