bókinni

Bókinni is the dative singular definite form of the Icelandic noun bók, which means book. In Icelandic, nouns inflect for case, number, and definiteness, and bók is a feminine noun. The form bókinni functions as the definite noun in the dative case, used to mark the indirect object or to indicate location, direction, or instrument when a preposition governs the dative.

The primary use of bókinni is with prepositions and constructions that require the dative, such as í bókinni (in the book) or til bókinni (to the book), though exact prepositional requirements can vary with verb and construction. Because it carries the definite article as part of its ending, bókinni signals that the book being referred to is a specific, known entity within the discourse.

In the Icelandic grammatical system, the dative singular definite form is one of several case-enabled endings for bók. The form is most commonly encountered in written and formal Icelandic, but it also appears in everyday speech, especially in contexts that require explicit marking of case and definiteness.

See also: Icelandic grammar, Dative case, Definite article in Icelandic.

Note: bókinni does not stand alone as a separate word with independent meaning; it is the inflected form of bók used in specific syntactic and semantic contexts.