tölvum

Tölvum is the dative plural and genitive plural form of tölva, the Icelandic word for computer. Tölva is a feminine noun, and its most common nominative plural is tölvur. The form tölvum appears when the noun is required in the dative plural (indirect object or location) or in the genitive plural (possession or association with multiple computers).

In contemporary Icelandic, tölvur is the standard plural used in everyday speech and writing. Tölvum tends to occur in more formal, literary, or historical contexts, and is typically encountered in grammar descriptions, dictionaries, or texts that preserve older declension patterns. The choice between tölvur and tölvum depends on the grammatical role of tölva in a sentence.

Related terms include tölva, the singular form, and other case forms of the same noun. Understanding tölvum alongside its other forms illustrates Icelandic’s system of case and number in noun inflection.