sähköisessä

Sähköisessä is a form of the Finnish adjective sähköinen, meaning electric or electrical. It is used when the noun it modifies is in the inessive case, for example in phrases like sähköisessä huoneessa (in the electrical room) or sähköisessä järjestelmässä (in the electrical system). Finnish adjectives decline for case and number, so sähköinen has several inflected forms, including sähköisen (genitive singular), sähköistä (partitive singular), sähköisessä (inessive singular), and sähköisissä (inessive plural).

Morphology and usage: The stem of the adjective is sähkö-, added to the -inen suffix to form sähköinen, which then takes Finnish case endings. The inessive form sähköisessä marks location or state related to electricity or electrical technology. This form is common in technical writing, manuals, and everyday language when describing objects or environments connected to electricity, such as devices, installations, or systems.

Etymology: sähköinen is derived from sähkö, meaning electricity, which in turn comes from Swedish elektricitet and ultimately from the Greek word elektron. The suffix -inen creates adjectives meaning “having the characteristics of” or “relating to,” yielding the meaning related to electricity.

Usage notes: In Finnish, there is a subtle distinction between sähköinen and elektroninen. Sähköinen tends to cover general electrical or power-related senses, while elektroninen is often used for electronic, digital, or microelectronic contexts. In many practical senses, the two can overlap, but awareness of nuance can guide choice in technical writing and terminology.

See also: sähkö, sähköinen, elektroninen.