öljyisten
Öljyisten is a Finnish inflected form of the adjective öljyinen, meaning oily or oil-covered. It is not a standalone noun; it functions as an adjective that describes a noun, with its form determined by Finnish grammar.
The form öljyisten is the genitive plural of the adjective. It is used when the noun it
In Finnish, adjectives agree with the nouns they describe in number and case. The suffixes of adjectives
Etymology traces öljyinen to the noun öljy (oil) plus the adjectival suffix -inen, which together form a