lyhyisiin

Lyhyisiin is a Finnish grammatical form. It is the illative plural of the adjective lyhyt, and is used to describe movement toward a plural noun that is characterized as short. In practice, it appears in phrases such as lyhyisiin housuihin, meaning into the shorts. The form signals the illative case (into) in the plural and modifies a following plural noun to indicate direction toward that item.

Formation and morphology: The base adjective lyhyt takes a plural stem lyhy-, and the illative plural ending is -isiin, yielding lyhyisiin. This mirrors the pattern seen with other adjectives in the illative plural, such as vihreisiin (into the greens) or suurisiin (into the big ones), with adjustments for vowel harmony in actual usage.

Usage: Lyhyisiin is primarily a grammatical form and is seldom used as a standalone word. It occurs in sentences where the noun is plural and the speaker intends movement toward or change into the described plural items. Common collocations include lyhyisiin housuihin (into the shorts) or lyhyisiin takkeihin (into the short jackets). In everyday speech, speakers often include the noun for clarity, e.g., lyhyisiin housuihin or lyhyisiin shortsseihin.

See also: Finnish grammar, illative case, adjective declension.