adessiivisia

Adessiivisia is a Finnish linguistic term referring to the plural partitive form of the adjective adessiivinen, used to describe multiple items in or related to the adessive case. The adessiivinen form denotes something connected to the adessive case, which in Finnish grammar marks location on a surface or at a place, typically with the suffixes -lla or -llä.

In practice, adessiivisia occurs when an adjective describes more than one noun that is in the adessive sense or when discussing adessive forms in a descriptive or scholarly context. Commonly, it appears in noun phrases such as adessiivisia muotoja meaning “adessive forms” or adessiivisia tapauksia meaning “adessive cases.” The usage is mainly found in linguistic description, reference grammars, and educational material about Finnish grammar rather than in ordinary conversational language.

Morphology and usage note: adessiivisia is formed as the partitive plural form of the adjective adessiivinen. Finnish adjectives in the partitive plural take endings such as -sia or -itä, depending on vowel harmony, yielding forms like adessiivisia. This contrasts with the nominative plural form adessiiviset, which would modify a plural noun in the nominative.

See also: Adessiivi, Finnish grammar, grammatical cases, partitive case.