elinikäisestä

Elinikäisestä is the elative singular form of the Finnish adjective elinikäinen, meaning lifelong or lasting for a lifetime. In Finnish, the elative case often denotes source, basis, or the point of reference, so elinikäisestä is used with a following noun to express phrases such as “from lifelong X” or “concerning lifelong X.”

Usage of elinikäisestä appears primarily in formal or written Finnish, including academic, medical, and educational contexts, where it describes phenomena, experiences, or processes tied to the duration of life. For example, Elinikäisestä kokemuksesta on hyötyä means “There is value in lifelong experience.” Another example is käsitellä elinikäistä kehitystä, meaning “to deal with lifespan development.”

Etymology and morphology: elinikäinen is formed from the concept of life span, with the general adjective suffix -inen to indicate a characteristic, yielding lifelong. The elative form elinikäisestä (and related inflections such as elinikäisen, elinikäisestä) follows standard Finnish inflection rules for adjectives. The word is commonly used in discussions of development, health, education, and policy when the reference point is the duration of a person’s life or a phenomenon extending across a life course.

Notes: elinikäinen and its inflected forms can be seen as more formal or technical than everyday alternatives. In everyday language, speakers may opt for synonyms like pitkäaikainen or pitkäkestoinen where the nuance is close but not identical to lifelong.