peräisiä

Peräisiä is a Finnish word-form that appears in linguistic and descriptive usage to refer to multiple items described as belonging to the rear or hind part of a larger whole. In practice, peräisiä functions as the partitive plural of an adjective derived from the prefix perä-, meaning rear or tail. The form is mainly encountered in technical, anatomical, or poetic contexts where the rear portions of something are being discussed.

Morphology and usage can be summarized as follows. The base meaning comes from the stem perä- (rear). The adjective formed with the ending -inen yields peräinen, which in its partitive plural takes the ending -isiä. Therefore, the phrase peräisiä osia translates roughly to “rear parts” or “hind portions,” with the noun in partitive plural following it (osia, meaning “parts”). This pattern is typical of Finnish adjectives used in a nominal sense to modify a following noun in the partitive plural.

Examples of use include phrases such as peräisiä osia (rear parts) or peräisiä ruumiinosia (rear body parts). In practice, peräisiä tends to appear in technical descriptions, anatomical notes, or literary contexts where the focus is on the portions located at the back of an object, organism, or structure. The term is relatively specialized and not commonly used in everyday language; in many cases speakers would opt for more specific or conventional expressions depending on the domain.

See also: Finnish grammar, partitive case in Finnish, perä- as a prefix indicating rear or behind.