tækis

tækis is the genitive singular form of the Icelandic neuter noun tæki, which means device, tool, or piece of equipment. The base noun tæki denotes any instrument or apparatus, and its inflected forms are used according to Icelandic grammar to express possession or association with that device.

In everyday Icelandic, tæki is used to refer to equipment in a broad sense, from household gadgets to specialized machinery. The genitive singular form tækis appears when indicating possession or relation to a device, similar to the English "of a device" or "device's" in indefinite contexts. For a specific, identifiable device, the definite forms are tækið (the device) and tækins (of the device).

The plural form tæki means "devices" or "tools," while the singular tæki is used for an indefinite device, and the definite sæis follow the standard Icelandic pattern (tækið, tækins). The word is productive in technical and everyday language and can appear in compounds and descriptive phrases without changing its basic meaning.

Etymology: tæki is a native Icelandic noun with cognates in other Nordic languages within the Germanic family, reflecting its long-standing role as a general term for instrument or equipment. Its inflection follows regular patterns for neuter nouns in Icelandic.

See also: Icelandic language, tæki, grammar of the genitive case, Icelandic noun declension.