þýðinguna
þýðinguna is the accusative singular form of the Old Norse word "þýðing". The word itself translates to "translation", "interpretation", or "explanation". Therefore, "þýðinguna" refers to a specific instance of something being translated, interpreted, or explained, when it is the direct object of a verb or preposition. For example, in a sentence, if one were discussing "the translation" of a text, and "the translation" was the object of the action, "þýðinguna" would be the form used. Understanding the grammatical case is crucial for correctly interpreting the role of the noun within an Old Norse sentence. The original nominative form, "þýðing", would be used when the noun is the subject of the sentence. The accusative case signifies direct object function, indicating what is acted upon.