Learn Hardcore Icelandic: Hún týnir köttinum.

Týnir is the third person singular present form of the verb týna, which means “to lose.” It tells us that the subject is performing the action of losing something—in this case, the cat.

Why is köttinum in the dative case instead of the accusative case as in English?

In Icelandic, some verbs govern a dative object rather than an accusative one. The verb týna falls into this category, so its object—the cat—is put in the dative case. This contrasts with English, where the object “the cat” remains unmarked by case.

How do I recognize that köttinum is the definite form of köttur and that it’s in the dative case?

Icelandic nouns change their endings to signal definiteness and grammatical case. For the masculine noun köttur (cat), the definite nominative form is kötturinn, while the definite dative form is köttinum. The ending -inum indicates that the noun is in the dative singular.

What role does Hún play in this sentence?

Hún means “she” and is in the nominative case because it serves as the subject of the sentence. It identifies who is carrying out the action of losing the cat.

Is the word order in "Hún týnir köttinum" similar to that of an English sentence?

Yes, the sentence follows a typical subject–verb–object structure like English. Although Icelandic has a rich case system that clearly marks the roles of the words, the basic order—subject (Hún), verb (týnir), object (köttinum)—remains similar to English.