tækisins
Tækisins is a grammatical form found in Icelandic, functioning as the definite genitive singular of the noun tæki, which means device or tool. The form is used to express possession or a close relationship between the device and another element in a sentence, roughly corresponding to English phrases such as “the device’s” or “of the device.”
Tæki is a neuter noun. Its definite singular nominative form is tækið, and the definite genitive singular
In modern Icelandic, tækisins can be used to indicate possession in phrases describing the device’s characteristics,