harmaisiin
Harmaisiin is a Finnish inflected form that arises from the color adjective harmaa, meaning gray. It is generally analyzed as an illative plural form in Finnish grammar, created by attaching the illative plural suffix -iin to a stem derived from harmaa. In practice, harmaisiin is used to express “into the greys” or “to gray things” when referring to gray objects or grayness in a plural and directional sense. The form is most often encountered in literary, poetic, or linguistic contexts rather than in everyday speech.
As a grammatical form, harmaisiin does not function as a standalone word with a fixed lexical meaning.
Because harmaisiin is a grammatical inflection rather than a distinct concept, it is rarely discussed outside
See also: Finnish grammar, Illative case, Adjectives in Finnish.