ilmentyä

Ilmentyä is a Finnish verb meaning to become evident, to manifest, or to appear, especially in reference to signs, symptoms, or phenomena that become noticeable over time. The sense is typically used in formal or technical contexts such as medicine, science, or literary description, where something is revealed or shown rather than created.

In medical contexts ilmentyä describes the emergence of symptoms or signs. For example: Oireet ilmentyvät vähitellen. The illness may ilmentyä as it progresses, with the subject being the signs or symptoms. The verb is intransitive and can take different tense endings like other Finnish verbs.

The word is related to ilmetä (to appear, to emerge) and ilmeneminen (appearance, manifestation). It tends to appear in more formal language than everyday speech, where speakers might use ilmetä, paljastua, or other synonyms depending on nuance. Ilmentyä carries a nuance of something becoming visible or detectable rather than being actively caused by an agent.

Typical usages include references to gradual or observable changes in conditions, properties, or states, such as symptoms in a disease, traits in a population, or features in a phenomenon. The term is versatile but largely technical or literary in tone, and it is often chosen to emphasize the reveale­d or disclosed aspect of what is occurring.

See also: ilmetä, ilmeneminen, sairastua.