fjölskyldunnar
Fjölskyldunnar is the genitive singular form of the Icelandic word "fjölskylda," which translates to "family" in English. In the Icelandic language, case endings are used to indicate the grammatical function of a noun within a sentence. The genitive case, indicated by the "-nnar" ending in this instance, typically signifies possession or a relationship. Therefore, "fjölskyldunnar" literally means "of the family" or "the family's." This form would be used when talking about something belonging to the family or when describing a relationship in relation to the family. For example, in a sentence like "Myndin er af fjölskyldunnar" (The picture is of the family), "fjölskyldunnar" indicates that the picture belongs to or is representative of the family. It is a fundamental grammatical element for expressing possessive or relational concepts within Icelandic sentences concerning a singular family unit.