kieliopillisissa

Kieliopillisissa is, in Finnish, the inessive plural form of the adjective kieliopillinen, which means “grammatical” or “pertaining to grammar.” It is used to describe something that exists within or relates to grammar, when the noun it modifies is plural. For example, phrases like kieliopillisissa järjestelmissä or kieliopillisissa säännöissä mean “in grammatical systems” and “in grammatical rules,” respectively.

Etymology and morphology: the base is kielioppi (grammar), combined with the suffix -llinen to form kieliopillinen (grammatical). Finnish adjectives then inflect for case and number to match the noun they describe. The inessive plural form ends with -issa, yielding kieliopillisissa. The corresponding singular inessive is kieliopillisessa, and other forms include kieliopilliset (nominative plural) and kieliopillisesti (adverbial form meaning “grammatically”).

Usage: the expression is common in linguistic or educational writings that discuss grammar or grammatical systems, rules, or phenomena. It helps distinguish grammatical aspects from other language-related notions such as kielellinen (linguistic) or sanallinen (syntactic/orthographic) in Finnish.

See also: kieliopillinen, kieliopillisuus, grammar-related terminology in Finnish, such as kielellinen and sanallinen. In sum, kieliopillisissa is a standard inflected form used to refer to grammatical aspects within plural contexts in Finnish.