sähköistä

Sähköistä is the partitive singular form of the Finnish adjective sähköinen, meaning electric or related to electricity. It is used to describe nouns in contexts where the object is indefinite or partially defined, and it governs the partitive case. For example, sähköistä virtaa refers to electric current in the partitive, and sähköistä jännitystä can convey a sense of electric, heightened tension.

In Finnish, adjectives decline for case and number. The basic paradigm of sähköinen includes: nominative singular sähköinen, partitive singular sähköistä, genitive sähköisen, plural nominative sähköiset, and partitive plural sähköisiä.

Common usage includes attributive use before a noun: sähköinen laite (an electric device). In the partitive with indefinite objects: sähköistä laitetta (an electric device of which there is an unspecified amount). The form also appears in plural: sähköisiä laitteita (electric devices). Figuratively, sähköinen can describe atmospheres or experiences as well, such as sähköinen tunnelma (electric atmosphere); the corresponding partitive forms appear when the object is in partitive: sähköistä tunnelmaa, sähköisiä kokemuksia.

Etymology: sähköinen is formed from sähkö, meaning electricity, plus the adjectival suffix -inen. The word belongs to the standard pattern of Finnish adjective formation and has been in regular use since the 19th century.