kúum

Kóðum is the dative plural form of the Icelandic noun kóði, meaning code or cipher. In Icelandic grammar, kóði is a masculine noun; its dative plural is formed with -um, giving kóðum. The form is used whenever codes are the indirect object of a verb or governed by a preposition that requires the dative case. For example, with prepositions such as með (with) or til (to) in contexts involving multiple codes, you would use kóðum. In everyday language and in technical language—such as computing, cryptography, and data encoding—kóðar is used for the nominative plural, while kóðum appears in sentences describing actions concerning codes.

The word has historical roots in Old Norse and is native to the Nordic languages. In modern Icelandic, it remains a standard term in both general and technical discourse. Derived forms include kóðun (encoding), kóðari (encoder), and related compounds.

In summary, kóðum is not a separate lexical item but a grammatical form essential for expressing plurality and case in sentences about codes in Icelandic.