eikääntyviin

eikääntyviin is a Finnish term that would function as an illative plural form of a hypothetical adjective meaning “not aging” or “non-aging.” The construction illustrates how Finnish forms the illative case for plural nouns and their modifiers, using the suffix -iin (or -ihin in some phonological contexts). In a sentence, eikääntyviin would accompany a plural noun in illative to express “into non-aging [beings/things],” for example eikääntyviin olentoihin meaning “into non-aging beings.”

In Finnish, the illative plural ending -iin/-ihin generally follows a stem that ends in a vowel or certain consonants, producing phrases such as eikääntyviin olentoihin. Because eikääntyvä/eikääntyviin is not a standard, widely attested word in everyday Finnish, the form is primarily of interest in linguistic description, grammar discussions, or speculative/creative writing. It is not commonly used in ordinary prose, where speakers would typically employ more conventional expressions for non-aging entities.

Usage notes and considerations:

- eikääntyviin is treated as a hypothetical or constructed form rather than a common lexical item.

- In practical text, speakers might prefer established adjectives such as ikääntymätön or ikääntymättömiin (and corresponding noun phrases) to convey non-aging concepts.

- When encountered, the phrase eikääntyviin olentoihin would be parsed as an illative plural modifier plus noun, e.g., “into non-aging beings,” within a larger clause.

See also: ikääntyminen, ikääntyvä, ikääntymätön, Finnish grammar, illative case.