yöllinen

Yöllinen is a Finnish adjective meaning "of the night" or "nightly." It is used to describe things that occur during the night or are associated with night, such as a nighttime walk, nighttime weather, or the night sky.

The word is formed from the noun yö (night) with the suffix -llinen, which signals a characteristic or association. As with other Finnish adjectives, yöllinen agrees with the noun it modifies in number and case, and it is not capitalized unless it begins a sentence or appears in a title.

In everyday language, yöllinen can appear in phrases like yöllinen hiljaisuus (nighttime silence), yöllinen sää (nighttime weather), or yöllinen taivas (night sky). It is also a common stylistic device in Finnish literature and media to evoke nocturnal mood or atmosphere, and it may appear in titles or descriptions that center on night settings or nocturnal themes.

Overall, yöllinen functions as a versatile term for anything linked to the night in Finnish, spanning descriptive use in speech, writing, and creative works. It complements related terms such as yö (night) and yöelämä (nightlife) in expressing nocturnal concepts.