määräisestä
Määräisestä is a Finnish adjective form associated with the word määräinen, which means "definite" or "determinate." In Finnish grammar, the idea of definiteness is not expressed with a dedicated definite article, but rather through context, demonstratives, possessives, and other markers. The form määräisestä specifically represents the elative singular of the adjective määräinen, used to modify a noun in the elative case and to indicate that the referring item is a definite or specified one within a given context.
Morphology and usage: The adjective määräinen declines like other Finnish adjectives. When it accompanies a noun
Linguistic significance: The term and its inflected forms are employed mainly in academic discussions of Finnish
Overall, määräinen and its forms, including määräisestä, are primarily of interest to linguists studying Finnish grammar