röngum

Röngum is the dative plural inflection of the Icelandic adjective röngur, which means "wrong" or "incorrect." It is a grammatical form rather than a standalone word with a separate meaning. In Icelandic, adjectives agree with the nouns they modify in gender, number, case, and definiteness, so röngur takes the form röngum when the noun is in the dative plural.

Usage in grammar: Röngum appears when describing multiple nouns that are in the dative case. For example, in a descriptive or instructional context, a phrase with a plural noun in the dative may be described as having röngum characteristics or röngum implications, depending on the sentence structure. Because it is a case and number ending, röngum is one of several inflected forms of röngur used across different grammatical contexts.

Etymology and relation to other forms: Röngur originates from the Icelandic adjective meaning "wrong." The specific form röngum is produced by standard Icelandic adjective declension rules. Other forms include röngur (masculine nominative singular), röng (neuter or short-form variant in certain contexts), and other endings corresponding to different cases and numbers.

See also: Röngur, the base adjective; Icelandic grammar of adjectives; Icelandic declension patterns.

Röngum, as a grammatical form, illustrates how Icelandic adjectives change to agree with the noun they modify, reflecting the language’s case and number system. It is not a separate lexical entry beyond its role as an inflected ending.