nähtuses
Nähtuses is the inessive singular form of the Estonian noun nähtus, meaning phenomenon, appearance, or apparition. In Estonian grammar, nouns are declined for case, number, and other features; the inessive case denotes location or state and is formed for this noun with the ending -s in the singular. Thus nähtuses translates roughly as “in a phenomenon” or “within a phenomenon.” The form is used when the speaker refers to something that occurs inside or as part of a phenomenon, rather than naming the phenomenon itself.
Declension (singular and common forms): nominative nähtus, genitive nähtuse, partitive nähtust, inessive nähtuses. Plural nähtused; genitive
Usage and examples: In everyday and academic language, nähtuses can introduce statements about what happens inside
Etymology and relation to nähtus: Nähtus derives from the verb näha “to see” plus the nominal suffix